โค2๐คฉ1๐ฏ1๐1
Chemistry booster series
https://t.me/+5VTfeOK6KxJkYWQ1
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๐ฏ4โค2๐1๐1
1๏ธโฃ #MOLECULARORBITALTHEORY
๐ Molecular Orbital Theory (MOT) explains bonding, bond order and magnetic nature of molecules.
๐ Proposed by Hund and Mulliken.
2๏ธโฃ #BASICIDEA
โ๏ธ Atomic orbitals of bonded atoms combine to form molecular orbitals
โ๏ธ Molecular orbitals belong to the entire molecule
โ๏ธ Number of MOs formed = number of AOs combined
3๏ธโฃ #CONDITIONSFORCOMBINATION
โ๏ธ Comparable energy of AOs
โ๏ธ Proper orientation
โ๏ธ Significant overlap
4๏ธโฃ #TYPESOFMOLECULARORBITALS
โ๏ธ Bonding MO
โ๏ธ Antibonding MO
โ๏ธ Non-bonding MO (rare in diatomic molecules)
5๏ธโฃ #BONDINGMO
โ๏ธ Formed by constructive overlap
โ๏ธ Lower energy than AOs
โ๏ธ Increases stability
๐ Denoted by: ฯ, ฯ
6๏ธโฃ #ANTIBONDINGMO
โ๏ธ Formed by destructive overlap
โ๏ธ Higher energy
โ๏ธ Decreases stability
๐ Denoted by: ฯ*, ฯ*
7๏ธโฃ #ELECTRONFILLINGRULES
โ๏ธ Aufbau principle
โ๏ธ Pauli exclusion principle
โ๏ธ Hundโs rule of maximum multiplicity
8๏ธโฃ #ENERGYORDEROFDIATOMICMOLECULES โญ
๐ For Bโ, Cโ, Nโ:
ฯ1s < ฯ1s < ฯ2s < ฯ2s < ฯ2p < ฯ2p < ฯ2p < ฯ2p
๐ For Oโ, Fโ, Neโ:
ฯ1s < ฯ1s < ฯ2s < ฯ2s < ฯ2p < ฯ2p < ฯ2p < ฯ2p
9๏ธโฃ #BONORDER (VERY IMP )
๐ Formula:
Bond order = (Nb โ Na) / 2
โ๏ธ Nb = bonding electrons
โ๏ธ Na = antibonding electrons
๐ Interpretation:
โ๏ธ Higher bond order โ stronger bond
โ๏ธ Bond order = 0 โ molecule does not exist
๐ #MAGNETICNATURE
โ๏ธ Unpaired electrons โ paramagnetic
โ๏ธ All electrons paired โ diamagnetic
๐ Example:
โ๏ธ Oโ โ paramagnetic
โ๏ธ Nโ โ diamagnetic
1๏ธโฃ1๏ธโฃ #IMPORTANTEXAMPLES (NEET ๐ฅ)
โ๏ธ Hโ โ bond order = 1
โ๏ธ Heโ โ bond order = 0 (does not exist)
โ๏ธ Oโโบ โ bond order increases
โ๏ธ Oโโป โ bond order decreases
1๏ธโฃ2๏ธโฃ #LIMITATIONSOFMOT
โ๏ธ Complex for polyatomic molecules
โ๏ธ Does not explain shape clearly
1๏ธโฃ3๏ธโฃ #NEETIMPORTANTPOINTS
โ๏ธ MOT explains paramagnetism of Oโ
โ๏ธ Energy order changes after Nโ
โ๏ธ Bond order decides stability
1๏ธโฃ4๏ธโฃ #ONELINEREVISION
Molecular Orbital Theory explains bonding by delocalised molecular orbitals and predicts bond order and magnetic nature
@Ayano1me @Neetugpoll @Neetugquiz
๐ Molecular Orbital Theory (MOT) explains bonding, bond order and magnetic nature of molecules.
๐ Proposed by Hund and Mulliken.
2๏ธโฃ #BASICIDEA
โ๏ธ Atomic orbitals of bonded atoms combine to form molecular orbitals
โ๏ธ Molecular orbitals belong to the entire molecule
โ๏ธ Number of MOs formed = number of AOs combined
3๏ธโฃ #CONDITIONSFORCOMBINATION
โ๏ธ Comparable energy of AOs
โ๏ธ Proper orientation
โ๏ธ Significant overlap
4๏ธโฃ #TYPESOFMOLECULARORBITALS
โ๏ธ Bonding MO
โ๏ธ Antibonding MO
โ๏ธ Non-bonding MO (rare in diatomic molecules)
5๏ธโฃ #BONDINGMO
โ๏ธ Formed by constructive overlap
โ๏ธ Lower energy than AOs
โ๏ธ Increases stability
๐ Denoted by: ฯ, ฯ
6๏ธโฃ #ANTIBONDINGMO
โ๏ธ Formed by destructive overlap
โ๏ธ Higher energy
โ๏ธ Decreases stability
๐ Denoted by: ฯ*, ฯ*
7๏ธโฃ #ELECTRONFILLINGRULES
โ๏ธ Aufbau principle
โ๏ธ Pauli exclusion principle
โ๏ธ Hundโs rule of maximum multiplicity
8๏ธโฃ #ENERGYORDEROFDIATOMICMOLECULES โญ
๐ For Bโ, Cโ, Nโ:
ฯ1s < ฯ1s < ฯ2s < ฯ2s < ฯ2p < ฯ2p < ฯ2p < ฯ2p
๐ For Oโ, Fโ, Neโ:
ฯ1s < ฯ1s < ฯ2s < ฯ2s < ฯ2p < ฯ2p < ฯ2p < ฯ2p
9๏ธโฃ #BONORDER (VERY IMP )
๐ Formula:
Bond order = (Nb โ Na) / 2
โ๏ธ Nb = bonding electrons
โ๏ธ Na = antibonding electrons
๐ Interpretation:
โ๏ธ Higher bond order โ stronger bond
โ๏ธ Bond order = 0 โ molecule does not exist
๐ #MAGNETICNATURE
โ๏ธ Unpaired electrons โ paramagnetic
โ๏ธ All electrons paired โ diamagnetic
๐ Example:
โ๏ธ Oโ โ paramagnetic
โ๏ธ Nโ โ diamagnetic
1๏ธโฃ1๏ธโฃ #IMPORTANTEXAMPLES (NEET ๐ฅ)
โ๏ธ Hโ โ bond order = 1
โ๏ธ Heโ โ bond order = 0 (does not exist)
โ๏ธ Oโโบ โ bond order increases
โ๏ธ Oโโป โ bond order decreases
1๏ธโฃ2๏ธโฃ #LIMITATIONSOFMOT
โ๏ธ Complex for polyatomic molecules
โ๏ธ Does not explain shape clearly
1๏ธโฃ3๏ธโฃ #NEETIMPORTANTPOINTS
โ๏ธ MOT explains paramagnetism of Oโ
โ๏ธ Energy order changes after Nโ
โ๏ธ Bond order decides stability
1๏ธโฃ4๏ธโฃ #ONELINEREVISION
Molecular Orbital Theory explains bonding by delocalised molecular orbitals and predicts bond order and magnetic nature
@Ayano1me @Neetugpoll @Neetugquiz
๐ฅฐ2โค1๐ฏ1
1๏ธโฃ #VALENCEBONDTHEORY
๐ Valence Bond Theory (VBT) explains formation of covalent bonds by overlap of atomic orbitals.
๐ Proposed by Heitler and London.
2๏ธโฃ #BASICIDEA
โ๏ธ Atoms bond to achieve stable electronic configuration
โ๏ธ Half-filled atomic orbitals overlap
โ๏ธ Electrons pair with opposite spins
๐ Greater overlap โ stronger bond
3๏ธโฃ #CONDITIONSFOROVERLAP
โ๏ธ Half-filled orbitals
โ๏ธ Comparable energy of orbitals
โ๏ธ Proper orientation
4๏ธโฃ #TYPESOFOBOND
โ๏ธ Sigma (ฯ) bond
โ๏ธ Pi (ฯ) bond
5๏ธโฃ #SIGMABOND
โ๏ธ Formed by head-on overlap
โ๏ธ Stronger than ฯ bond
โ๏ธ Electron density along internuclear axis
๐ Overlap types:
โ๏ธ sโs
โ๏ธ sโp
โ๏ธ pโp
6๏ธโฃ #PIBOND
โ๏ธ Formed by sidewise overlap
โ๏ธ Weaker than ฯ bond
โ๏ธ Electron density above & below axis
๐ Formed by pโp overlap only
7๏ธโฃ #HYBRIDISATION
๐ Mixing of atomic orbitals of similar energy to form hybrid orbitals.
โ๏ธ Number of hybrid orbitals = number of AOs mixed
8๏ธโฃ #TYPESOFHYBRIDISATION
โ๏ธ sp โ linear โ 180ยฐ โ BeClโ
โ๏ธ spยฒ โ trigonal planar โ 120ยฐ โ BFโ
โ๏ธ spยณ โ tetrahedral โ 109.5ยฐ โ CHโ
โ๏ธ dspยฒ โ square planar โ [Ni(CN)โ]ยฒโป
โ๏ธ dยฒspยณ โ octahedral โ [Co(NHโ)โ]ยณโบ
9๏ธโฃ #VALENCEBONDTHEORYINCOORDINATIONCOMPOUNDS
โ๏ธ Central metal provides empty orbitals
โ๏ธ Ligands donate lone pair
โ๏ธ Coordinate bond formed by overlap
๐ #MAGNETICNATURE
โ๏ธ Unpaired electrons โ paramagnetic
โ๏ธ Paired electrons โ diamagnetic
๐ Example:
โ๏ธ [Ni(CN)โ]ยฒโป โ diamagnetic
โ๏ธ [NiClโ]ยฒโป โ paramagnetic
1๏ธโฃ1๏ธโฃ #LIMITATIONSOFVBT
โ๏ธ Cannot explain colour of compounds
โ๏ธ Cannot explain strong vs weak ligands clearly
โ๏ธ No quantitative explanation of spectra
1๏ธโฃ2๏ธโฃ #NEETIMPORTANTPOINTS
โ๏ธ ฯ bond is stronger than ฯ bond
โ๏ธ Multiple bonds = 1 ฯ + remaining ฯ
โ๏ธ Hybridisation explains geometry
1๏ธโฃ3๏ธโฃ #ONELINEREVISION
Valence Bond Theory explains bonding by orbital overlap and predicts bond type, strength and geometry.
@Ayano1me @Neetugpoll @Neetugquiz
๐ Valence Bond Theory (VBT) explains formation of covalent bonds by overlap of atomic orbitals.
๐ Proposed by Heitler and London.
2๏ธโฃ #BASICIDEA
โ๏ธ Atoms bond to achieve stable electronic configuration
โ๏ธ Half-filled atomic orbitals overlap
โ๏ธ Electrons pair with opposite spins
๐ Greater overlap โ stronger bond
3๏ธโฃ #CONDITIONSFOROVERLAP
โ๏ธ Half-filled orbitals
โ๏ธ Comparable energy of orbitals
โ๏ธ Proper orientation
4๏ธโฃ #TYPESOFOBOND
โ๏ธ Sigma (ฯ) bond
โ๏ธ Pi (ฯ) bond
5๏ธโฃ #SIGMABOND
โ๏ธ Formed by head-on overlap
โ๏ธ Stronger than ฯ bond
โ๏ธ Electron density along internuclear axis
๐ Overlap types:
โ๏ธ sโs
โ๏ธ sโp
โ๏ธ pโp
6๏ธโฃ #PIBOND
โ๏ธ Formed by sidewise overlap
โ๏ธ Weaker than ฯ bond
โ๏ธ Electron density above & below axis
๐ Formed by pโp overlap only
7๏ธโฃ #HYBRIDISATION
๐ Mixing of atomic orbitals of similar energy to form hybrid orbitals.
โ๏ธ Number of hybrid orbitals = number of AOs mixed
8๏ธโฃ #TYPESOFHYBRIDISATION
โ๏ธ sp โ linear โ 180ยฐ โ BeClโ
โ๏ธ spยฒ โ trigonal planar โ 120ยฐ โ BFโ
โ๏ธ spยณ โ tetrahedral โ 109.5ยฐ โ CHโ
โ๏ธ dspยฒ โ square planar โ [Ni(CN)โ]ยฒโป
โ๏ธ dยฒspยณ โ octahedral โ [Co(NHโ)โ]ยณโบ
9๏ธโฃ #VALENCEBONDTHEORYINCOORDINATIONCOMPOUNDS
โ๏ธ Central metal provides empty orbitals
โ๏ธ Ligands donate lone pair
โ๏ธ Coordinate bond formed by overlap
๐ #MAGNETICNATURE
โ๏ธ Unpaired electrons โ paramagnetic
โ๏ธ Paired electrons โ diamagnetic
๐ Example:
โ๏ธ [Ni(CN)โ]ยฒโป โ diamagnetic
โ๏ธ [NiClโ]ยฒโป โ paramagnetic
1๏ธโฃ1๏ธโฃ #LIMITATIONSOFVBT
โ๏ธ Cannot explain colour of compounds
โ๏ธ Cannot explain strong vs weak ligands clearly
โ๏ธ No quantitative explanation of spectra
1๏ธโฃ2๏ธโฃ #NEETIMPORTANTPOINTS
โ๏ธ ฯ bond is stronger than ฯ bond
โ๏ธ Multiple bonds = 1 ฯ + remaining ฯ
โ๏ธ Hybridisation explains geometry
1๏ธโฃ3๏ธโฃ #ONELINEREVISION
Valence Bond Theory explains bonding by orbital overlap and predicts bond type, strength and geometry.
@Ayano1me @Neetugpoll @Neetugquiz
๐ฅ2๐1๐1
Q1.
Assertion (A): In Oโ molecule, two electrons remain unpaired in molecular orbitals.
Reason (R): The last electrons of Oโ occupy degenerate ฯ* antibonding orbitals according to Hundโs rule.
(1) A & R both true and R is correct explanation
(2) A & R both true but R is not correct explanation
(3) A true, R false
(4) A false, R true
Q2.
Assertion (A): Bond order of Nโ molecule is 3.
Reason (R): Nโ has more electrons in bonding molecular orbitals than in antibonding molecular orbitals.
(1) A & R both true and R is correct explanation
(2) A & R both true but R is not correct explanation
(3) A true, R false
(4) A false, R true
Q3.
Assertion (A): Heโ molecule does not exist.
Reason (R): Number of electrons in bonding and antibonding orbitals of Heโ are equal.
(1) A & R both true and R is correct explanation
(2) A & R both true but R is not correct explanation
(3) A true, R false
(4) A false, R true
Q1.
Assertion (A): According to VBT, a covalent bond is formed by overlap of half-filled atomic orbitals.
Reason (R): Overlap of orbitals increases electron density between two nuclei.
(1) A & R both true and R is correct explanation
(2) A & R both true but R is not correct explanation
(3) A true, R false
(4) A false, R true
Q2.
Assertion (A): A ฯ-bond is stronger than a ฯ-bond.
Reason (R): ฯ-bond is formed by head-on overlap whereas ฯ-bond is formed by sidewise overlap.
(1) A & R both true and R is correct explanation
(2) A & R both true but R is not correct explanation
(3) A true, R false
(4) A false, R true
Q3.
Assertion (A): Valence Bond Theory cannot explain paramagnetism of Oโ molecule.
Reason (R): VBT does not consider molecular orbitals and electron delocalisation.
(1) A & R both true and R is correct explanation
(2) A & R both true but R is not correct explanation
(3) A true, R false
(4) A false, R true
โค1๐1๐ณ1๐1
๐1๐ฅ1๐1๐ฏ1
1๏ธโฃ #KINETICTHEORYOFGASES
โ๏ธ Explains macroscopic properties of gases
โ๏ธ Based on molecular motion
โ๏ธ Applies mainly to ideal gases
2๏ธโฃ #BASICPOSTULATES
โ๏ธ Gas consists of very large number of molecules
โ๏ธ Molecules are point masses (negligible volume)
โ๏ธ Distance between molecules โซ molecular size
โ๏ธ Molecules move randomly in all directions
3๏ธโฃ #NATUREOFMOLECULARMOTION
โ๏ธ Continuous
โ๏ธ Random
โ๏ธ Straight-line motion between collisions
๐ Velocity constantly changes due to collisions
4๏ธโฃ #INTERMOLECULARFORCES
โ๏ธ Negligible attractive forces
โ๏ธ No repulsion except during collision
๐ Valid only for ideal gases
5๏ธโฃ #COLLISIONS (VERY IMP ๐ฅ)
โ๏ธ Collisions are perfectly elastic
โ๏ธ Occur between:
โช๏ธ Moleculeโmolecule
โช๏ธ Moleculeโwall
๐ No loss of kinetic energy
6๏ธโฃ #PRESSUREOFGAS
โ๏ธ Due to collision of gas molecules with container walls
โ๏ธ More collisions โ more pressure
๐ Pressure โ number of collisions
7๏ธโฃ #KINETICENERGY
โ๏ธ Average kinetic energy depends only on temperature
โ๏ธ Independent of pressure & volume
๐ Formula:
Average K.E. = (3/2) kT (per molecule)
Average K.E. = (3/2) RT (per mole)
8๏ธโฃ #TEMPERATURESIGNIFICANCE
โ๏ธ Measure of average kinetic energy
โ๏ธ At 0 K โ molecular motion stops (ideal case)
๐ Higher T โ higher molecular speed
9๏ธโฃ #SPEEDOFGASMOLECULES
โ๏ธ Three types:
โช๏ธ Most probable speed (vโ)
โช๏ธ Average speed (vโแตฅ)
โช๏ธ RMS speed (vแตฃโโ)
๐ Relation:
vโ < vโแตฅ < vแตฃโโ
๐ #SPEEDFORMULAE (NEET FAVORITE โค๏ธ)
โ๏ธ vโ = โ(2RT / M)
โ๏ธ vโแตฅ = โ(8RT / ฯM)
โ๏ธ vแตฃโโ = โ(3RT / M)
๐ M in kg molโปยน
1๏ธโฃ1๏ธโฃ #GRAHAMLAW (LINKED CONCEPT)
โ๏ธ Rate โ 1 / โM
โ๏ธ Lighter gas diffuses faster
1๏ธโฃ2๏ธโฃ #DEVIATIONFROMIDEALBEHAVIOUR
โ๏ธ Real gases deviate at:
โช๏ธ High pressure
โช๏ธ Low temperature
๐ Cause:
โ๏ธ Finite molecular volume
โ๏ธ Intermolecular attraction
1๏ธโฃ3๏ธโฃ #LIMITATIONSOFKTG
โ Cannot explain liquefaction
โ Fails at high pressure
โ Assumes zero molecular volume
1๏ธโฃ4๏ธโฃ #NEETONELINERS
โ๏ธ Pressure independent of mass of gas
โ๏ธ KE โ absolute temperature
โ๏ธ Elastic collision = KE conserved
โ๏ธ At same T โ all gases have same average KE
@Ayano1me @Neetugpoll @Neetugquiz
โ๏ธ Explains macroscopic properties of gases
โ๏ธ Based on molecular motion
โ๏ธ Applies mainly to ideal gases
2๏ธโฃ #BASICPOSTULATES
โ๏ธ Gas consists of very large number of molecules
โ๏ธ Molecules are point masses (negligible volume)
โ๏ธ Distance between molecules โซ molecular size
โ๏ธ Molecules move randomly in all directions
3๏ธโฃ #NATUREOFMOLECULARMOTION
โ๏ธ Continuous
โ๏ธ Random
โ๏ธ Straight-line motion between collisions
๐ Velocity constantly changes due to collisions
4๏ธโฃ #INTERMOLECULARFORCES
โ๏ธ Negligible attractive forces
โ๏ธ No repulsion except during collision
๐ Valid only for ideal gases
5๏ธโฃ #COLLISIONS (VERY IMP ๐ฅ)
โ๏ธ Collisions are perfectly elastic
โ๏ธ Occur between:
โช๏ธ Moleculeโmolecule
โช๏ธ Moleculeโwall
๐ No loss of kinetic energy
6๏ธโฃ #PRESSUREOFGAS
โ๏ธ Due to collision of gas molecules with container walls
โ๏ธ More collisions โ more pressure
๐ Pressure โ number of collisions
7๏ธโฃ #KINETICENERGY
โ๏ธ Average kinetic energy depends only on temperature
โ๏ธ Independent of pressure & volume
๐ Formula:
Average K.E. = (3/2) kT (per molecule)
Average K.E. = (3/2) RT (per mole)
8๏ธโฃ #TEMPERATURESIGNIFICANCE
โ๏ธ Measure of average kinetic energy
โ๏ธ At 0 K โ molecular motion stops (ideal case)
๐ Higher T โ higher molecular speed
9๏ธโฃ #SPEEDOFGASMOLECULES
โ๏ธ Three types:
โช๏ธ Most probable speed (vโ)
โช๏ธ Average speed (vโแตฅ)
โช๏ธ RMS speed (vแตฃโโ)
๐ Relation:
vโ < vโแตฅ < vแตฃโโ
๐ #SPEEDFORMULAE (NEET FAVORITE โค๏ธ)
โ๏ธ vโ = โ(2RT / M)
โ๏ธ vโแตฅ = โ(8RT / ฯM)
โ๏ธ vแตฃโโ = โ(3RT / M)
๐ M in kg molโปยน
1๏ธโฃ1๏ธโฃ #GRAHAMLAW (LINKED CONCEPT)
โ๏ธ Rate โ 1 / โM
โ๏ธ Lighter gas diffuses faster
1๏ธโฃ2๏ธโฃ #DEVIATIONFROMIDEALBEHAVIOUR
โ๏ธ Real gases deviate at:
โช๏ธ High pressure
โช๏ธ Low temperature
๐ Cause:
โ๏ธ Finite molecular volume
โ๏ธ Intermolecular attraction
1๏ธโฃ3๏ธโฃ #LIMITATIONSOFKTG
โ Cannot explain liquefaction
โ Fails at high pressure
โ Assumes zero molecular volume
1๏ธโฃ4๏ธโฃ #NEETONELINERS
โ๏ธ Pressure independent of mass of gas
โ๏ธ KE โ absolute temperature
โ๏ธ Elastic collision = KE conserved
โ๏ธ At same T โ all gases have same average KE
@Ayano1me @Neetugpoll @Neetugquiz
โค2๐คฉ1๐1
Q1.
Assertion (A): Average kinetic energy of gas molecules is directly proportional to absolute temperature.
Reason (R): Increase in temperature increases the speed of gas molecules.
(1) A & R both true and R is correct explanation
(2) A & R both true but R is not correct explanation
(3) A true, R false
(4) A false, R true
Q2.
Assertion (A): At constant temperature, pressure of a gas is inversely proportional to volume.
Reason (R): Number of collisions of gas molecules with container walls increases when volume decreases.
(1) A & R both true and R is correct explanation
(2) A & R both true but R is not correct explanation
(3) A true, R false
(4) A false, R true
Assertion (A): Root mean square (rms) speed of gas molecules depends on the nature of gas.
Reason (R): rms speed is inversely proportional to the square root of molar mass.
(1) A & R both true and R is correct explanation
(2) A & R both true but R is not correct explanation
(3) A true, R false
(4) A false, R true
๐ฏ2โค1๐ฅ1
1๏ธโฃ #THERMODYNAMICS
โ๏ธ Branch of chemistry dealing with energy changes
โ๏ธ Studies relation between heat, work & energy
โ๏ธ Does NOT tell rate or mechanism of reaction
2๏ธโฃ #THERMODYNAMICSYSTEM
โ๏ธ Part of universe under study
๐ Types:
โ๏ธ Open system โ exchanges mass + energy
โ๏ธ Closed system โ exchanges only energy
โ๏ธ Isolated system โ no exchange
3๏ธโฃ #SURROUNDINGS
โ๏ธ Rest of universe except system
๐ Universe = System + Surroundings
4๏ธโฃ #STATEFUNCTION
โ๏ธ Depends only on initial & final state
โ๏ธ Path independent
๐ Examples:
โ๏ธ Internal energy (U)
โ๏ธ Enthalpy (H)
โ๏ธ Entropy (S)
5๏ธโฃ #PATHFUNCTION
โ๏ธ Depends on path followed
๐ Examples:
โ๏ธ Heat (q)
โ๏ธ Work (w)
6๏ธโฃ #ZEROTHLAWOFTHERMODYNAMICS
โ๏ธ If A is in thermal equilibrium with B
โ๏ธ And B is in thermal equilibrium with C
โ๏ธ Then A is also in thermal equilibrium with C
๐ Basis of temperature measurement
7๏ธโฃ #FIRSTLAWOFTHERMODYNAMICS (VERY IMP )
โ๏ธ Law of conservation of energy
โ๏ธ Energy cannot be created or destroyed
๐ Mathematical form:
ฮU = q + w
โ๏ธ ฮU = change in internal energy
โ๏ธ q = heat absorbed by system
โ๏ธ w = work done on system
8๏ธโฃ #SIGNCONVENTION (NEET โ ๏ธ)
โ๏ธ Heat absorbed โ q = +ve
โ๏ธ Heat released โ q = โve
โ๏ธ Work done on system โ w = +ve
โ๏ธ Work done by system โ w = โve
9๏ธโฃ #WORKDONEINGASEXPANSION
โ๏ธ w = โPฮV
๐ Expansion (ฮV +ve) โ w โve
๐ Compression (ฮV โve) โ w +ve
๐ #SPECIALCASES
โ๏ธ At constant volume
w = 0
ฮU = q
โ๏ธ At constant pressure
qโ = ฮH
1๏ธโฃ1๏ธโฃ #ENTHALPY
โ๏ธ Heat content of system
โ๏ธ H = U + PV
๐ Change in enthalpy:
ฮH = ฮU + ฮ(PV)
1๏ธโฃ2๏ธโฃ #SECONDLAWOFTHERMODYNAMICS
โ๏ธ Natural processes occur in direction of increase in entropy
โ๏ธ Total entropy of universe always increases
๐ ฮS(universe) > 0 โ spontaneous
๐ ฮS(universe) = 0 โ equilibrium
1๏ธโฃ3๏ธโฃ #ENTROPY
โ๏ธ Measure of randomness or disorder
โ๏ธ Higher disorder โ higher entropy
๐ Solid < Liquid < Gas
1๏ธโฃ4๏ธโฃ #GIBBSFREEENERGY ( IMPORTANT )
โ๏ธ G = H โ TS
๐ Change in Gibbs energy:
ฮG = ฮH โ TฮS
โ๏ธ ฮG < 0 โ spontaneous
โ๏ธ ฮG = 0 โ equilibrium
โ๏ธ ฮG > 0 โ non-spontaneous
1๏ธโฃ5๏ธโฃ #THIRDLAWOFTHERMODYNAMICS
โ๏ธ Entropy of perfectly crystalline solid at 0 K is zero
๐ S = 0 at 0 K
1๏ธโฃ6๏ธโฃ #NEETONELINERS
โ๏ธ Internal energy is state function
โ๏ธ Heat & work are path functions
โ๏ธ First law is special case of energy conservation
โ๏ธ Entropy predicts spontaneity
โ๏ธ Gibbs energy decides feasibility
@Ayano1me @Neetugpoll @Neetugquiz
โ๏ธ Branch of chemistry dealing with energy changes
โ๏ธ Studies relation between heat, work & energy
โ๏ธ Does NOT tell rate or mechanism of reaction
2๏ธโฃ #THERMODYNAMICSYSTEM
โ๏ธ Part of universe under study
๐ Types:
โ๏ธ Open system โ exchanges mass + energy
โ๏ธ Closed system โ exchanges only energy
โ๏ธ Isolated system โ no exchange
3๏ธโฃ #SURROUNDINGS
โ๏ธ Rest of universe except system
๐ Universe = System + Surroundings
4๏ธโฃ #STATEFUNCTION
โ๏ธ Depends only on initial & final state
โ๏ธ Path independent
๐ Examples:
โ๏ธ Internal energy (U)
โ๏ธ Enthalpy (H)
โ๏ธ Entropy (S)
5๏ธโฃ #PATHFUNCTION
โ๏ธ Depends on path followed
๐ Examples:
โ๏ธ Heat (q)
โ๏ธ Work (w)
6๏ธโฃ #ZEROTHLAWOFTHERMODYNAMICS
โ๏ธ If A is in thermal equilibrium with B
โ๏ธ And B is in thermal equilibrium with C
โ๏ธ Then A is also in thermal equilibrium with C
๐ Basis of temperature measurement
7๏ธโฃ #FIRSTLAWOFTHERMODYNAMICS (VERY IMP )
โ๏ธ Law of conservation of energy
โ๏ธ Energy cannot be created or destroyed
๐ Mathematical form:
ฮU = q + w
โ๏ธ ฮU = change in internal energy
โ๏ธ q = heat absorbed by system
โ๏ธ w = work done on system
8๏ธโฃ #SIGNCONVENTION (NEET โ ๏ธ)
โ๏ธ Heat absorbed โ q = +ve
โ๏ธ Heat released โ q = โve
โ๏ธ Work done on system โ w = +ve
โ๏ธ Work done by system โ w = โve
9๏ธโฃ #WORKDONEINGASEXPANSION
โ๏ธ w = โPฮV
๐ Expansion (ฮV +ve) โ w โve
๐ Compression (ฮV โve) โ w +ve
๐ #SPECIALCASES
โ๏ธ At constant volume
w = 0
ฮU = q
โ๏ธ At constant pressure
qโ = ฮH
1๏ธโฃ1๏ธโฃ #ENTHALPY
โ๏ธ Heat content of system
โ๏ธ H = U + PV
๐ Change in enthalpy:
ฮH = ฮU + ฮ(PV)
1๏ธโฃ2๏ธโฃ #SECONDLAWOFTHERMODYNAMICS
โ๏ธ Natural processes occur in direction of increase in entropy
โ๏ธ Total entropy of universe always increases
๐ ฮS(universe) > 0 โ spontaneous
๐ ฮS(universe) = 0 โ equilibrium
1๏ธโฃ3๏ธโฃ #ENTROPY
โ๏ธ Measure of randomness or disorder
โ๏ธ Higher disorder โ higher entropy
๐ Solid < Liquid < Gas
1๏ธโฃ4๏ธโฃ #GIBBSFREEENERGY ( IMPORTANT )
โ๏ธ G = H โ TS
๐ Change in Gibbs energy:
ฮG = ฮH โ TฮS
โ๏ธ ฮG < 0 โ spontaneous
โ๏ธ ฮG = 0 โ equilibrium
โ๏ธ ฮG > 0 โ non-spontaneous
1๏ธโฃ5๏ธโฃ #THIRDLAWOFTHERMODYNAMICS
โ๏ธ Entropy of perfectly crystalline solid at 0 K is zero
๐ S = 0 at 0 K
1๏ธโฃ6๏ธโฃ #NEETONELINERS
โ๏ธ Internal energy is state function
โ๏ธ Heat & work are path functions
โ๏ธ First law is special case of energy conservation
โ๏ธ Entropy predicts spontaneity
โ๏ธ Gibbs energy decides feasibility
@Ayano1me @Neetugpoll @Neetugquiz
๐ฅ2โค1๐1๐1
Q1. Zeroth Law
Assertion (A): If two systems are separately in thermal equilibrium with a third system, they are in thermal equilibrium with each other.
Reason (R): All systems in thermal equilibrium have the same temperature.
(1) A & R both true and R is correct explanation
(2) A & R both true but R is not correct explanation
(3) A true, R false
(4) A false, R true
Q2. First Law
Assertion (A): Internal energy of an isolated system remains constant.
Reason (R): Energy can neither be created nor destroyed, only converted from one form to another.
(1) A & R both true and R is correct explanation
(2) A & R both true but R is not correct explanation
(3) A true, R false
(4) A false, R true
Q3. Second Law
Assertion (A): Heat cannot spontaneously flow from a colder body to a hotter body.
Reason (R): Total entropy of an isolated system always increases for a spontaneous process.
(1) A & R both true and R is correct explanation
(2) A & R both true but R is not correct explanation
(3) A true, R false
(4) A false, R true
Q4. Third Law
Assertion (A): Entropy of a perfectly crystalline substance is zero at absolute zero temperature.
Reason (R): At absolute zero, only one microstate is possible.
(1) A & R both true and R is correct explanation
(2) A & R both true but R is not correct explanation
(3) A true, R false
(4) A false, R true
๐คฉ3โค1๐ณ1
โญ ๐๐๐ ๐ชEE (๐๐ก, ๐๐, ๐ ๐ ๐ฆ๐ง๐๐ฅ, ๐ ๐๐ & so on) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐ข๐๐ ๐๐๐๐ง๐จ๐ฅ๐๐ฆ โ ๐จ๐ก๐๐ ๐ฌ + ๐๐ก ๐@๐ง๐ + ๐ฆ@๐ฉ@๐ + ๐ข๐ง๐๐๐ฅ ๐ง๐ข๐ฃ ๐ง๐๐๐๐๐๐ฅ๐ฆ
โญ ๐จ๐ก๐๐ ๐ฌ (๐ง๐ก๐ , ๐ฅ๐, ๐ฌ๐ฆ๐ฌ, ๐๐๐๐, ๐ฆ๐ง ๐ฆ๐๐ฅ, ๐๐ก๐ฆ๐๐ ๐๐๐ ๐ฆ๐๐ฅ & So On ) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐ฆ@๐ฉ@๐ (๐๐ ๐ฆ๐๐ฅ, ๐๐ฆ๐๐๐ฆ๐ ๐๐๐๐ฃ๐๐ฌ๐ ๐ฆ๐๐ฅ, ๐ฃ๐๐ฅ๐ฉ๐๐ญ ๐๐๐๐ก, ๐ฉ๐
๐ฆ๐๐ฅ & ๐ฆ๐ข ๐ข๐ก) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐๐ข๐ฃ๐ฌ๐ฅ๐๐๐๐ง ๐๐๐๐๐จ๐ฃ ๐ข๐ ๐๐๐ ๐ข๐ ๐ง๐๐๐ฆ
โญ ๐ข๐๐ ๐๐๐๐ง๐จ๐ฅ๐๐ฆ โ ๐จ๐ก๐๐ ๐ฌ + ๐๐ก ๐@๐ง๐ + ๐ฆ@๐ฉ@๐ + ๐ข๐ง๐๐๐ฅ ๐ง๐ข๐ฃ ๐ง๐๐๐๐๐๐ฅ๐ฆ
โญ ๐จ๐ก๐๐ ๐ฌ (๐ง๐ก๐ , ๐ฅ๐, ๐ฌ๐ฆ๐ฌ, ๐๐๐๐, ๐ฆ๐ง ๐ฆ๐๐ฅ, ๐๐ก๐ฆ๐๐ ๐๐๐ ๐ฆ๐๐ฅ & So On ) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐ฆ@๐ฉ@๐ (๐๐ ๐ฆ๐๐ฅ, ๐๐ฆ๐๐๐ฆ๐ ๐๐๐๐ฃ๐๐ฌ๐ ๐ฆ๐๐ฅ, ๐ฃ๐๐ฅ๐ฉ๐๐ญ ๐๐๐๐ก, ๐ฉ๐
๐ฆ๐๐ฅ & ๐ฆ๐ข ๐ข๐ก) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐๐ข๐ฃ๐ฌ๐ฅ๐๐๐๐ง ๐๐๐๐๐จ๐ฃ ๐ข๐ ๐๐๐ ๐ข๐ ๐ง๐๐๐ฆ
๐2๐1
Chemistry booster series
โญ ๐๐๐ ๐ชEE (๐๐ก, ๐๐, ๐ ๐ ๐ฆ๐ง๐๐ฅ, ๐ ๐๐ & so on) ๐ฎ๐ฌ๐ฎ๐ฒ โญ ๐ข๐๐ ๐๐๐๐ง๐จ๐ฅ๐๐ฆ โ ๐จ๐ก๐๐ ๐ฌ + ๐๐ก ๐@๐ง๐ + ๐ฆ@๐ฉ@๐ + ๐ข๐ง๐๐๐ฅ ๐ง๐ข๐ฃ ๐ง๐๐๐๐๐๐ฅ๐ฆ โญ ๐จ๐ก๐๐ ๐ฌ (๐ง๐ก๐ , ๐ฅ๐, ๐ฌ๐ฆ๐ฌ, ๐๐๐๐, ๐ฆ๐ง ๐ฆ๐๐ฅ, ๐๐ก๐ฆ๐๐ ๐๐๐ ๐ฆ๐๐ฅ & So On ) ๐ฎ๐ฌ๐ฎ๐ฒ โญ ๐ฆ@๐ฉ@๐ (๐๐ ๐ฆ๐๐ฅ, ๐๐ฆ๐๐๐ฆ๐ ๐๐๐๐ฃ๐๐ฌ๐ ๐ฆ๐๐ฅ, ๐ฃ๐๐ฅ๐ฉ๐๐ญ ๐๐๐๐ก, ๐ฉ๐ ๐ฆ๐๐ฅ & ๐ฆ๐ข ๐ข๐ก) ๐ฎ๐ฌ๐ฎ๐ฒ โญ ๐๐ข๐ฃ๐ฌ๐ฅ๐๐๐๐งโฆ
Join kr lena all bcz in sbke full lec + crash course+ handwriting notes +short notes + test All in one milega
๐1๐1๐ณ1
1๏ธโฃ #GIBBSFREEENERGY
โ๏ธ Thermodynamic state function
โ๏ธ Determines spontaneity of process
โ๏ธ Denoted by G
๐ Relation:
G = H โ TS
2๏ธโฃ #TERMSINFORMULA
โ๏ธ H โ Enthalpy
โ๏ธ T โ Absolute temperature (K)
โ๏ธ S โ Entropy
๐ Unit of G โ Joule
3๏ธโฃ #CHANGEINGIBBSENERGY
๐ Formula:
ฮG = ฮH โ TฮS
โ๏ธ Applies at constant T & P
4๏ธโฃ #SIGNIFICANCEOFฮG (VERY IMP )
โ๏ธ ฮG < 0 โ Spontaneous process
โ๏ธ ฮG = 0 โ Equilibrium
โ๏ธ ฮG > 0 โ Non-spontaneous
5๏ธโฃ #CASESBASEDONฮHANDฮS
โ๏ธ ฮH < 0 and ฮS > 0
Process spontaneous at all temperatures
โ๏ธ ฮH > 0 and ฮS < 0
Process non-spontaneous at all temperatures
โ๏ธ ฮH < 0 and ฮS < 0
Spontaneous at low temperature
โ๏ธ ฮH > 0 and ฮS > 0
Spontaneous at high temperature
6๏ธโฃ #TEMPERATUREEFFECT
โ๏ธ Increase in T increases importance of entropy term
โ๏ธ TฮS dominates at high temperature
7๏ธโฃ #GIBBSENERGYATEQUILIBRIUM
โ๏ธ At equilibrium:
ฮG = 0
๐ Relation with equilibrium constant:
ฮGยฐ = โRT ln K
8๏ธโฃ #STANDARDGIBBSFREEENERGY
โ๏ธ Measured at:
โ๏ธ 1 bar pressure
โ๏ธ 298 K temperature
๐ Formula:
ฮGยฐ = ฮHยฐ โ TฮSยฐ
9๏ธโฃ #REACTIONQUOTIENTRELATION
๐ Formula:
ฮG = ฮGยฐ + RT ln Q
โ๏ธ Q = reaction quotient
๐ At equilibrium Q = K
๐ #MAXIMUMWORKCONCEPT
โ๏ธ ฮG gives maximum non-expansion work
โ๏ธ Useful in electrochemistry
๐ Electrical work = โฮG
1๏ธโฃ1๏ธโฃ #GIBBSENERGYINELECTROCHEMISTRY
๐ Relation:
ฮGยฐ = โnFEยฐ
โ๏ธ n = number of electrons
โ๏ธ F = Faraday constant
โ๏ธ Eยฐ = standard emf
1๏ธโฃ2๏ธโฃ #UNITSOFฮG
โ๏ธ Joule
โ๏ธ kJ molโปยน (mostly used in chemistry)
1๏ธโฃ3๏ธโฃ #NEET
โ๏ธ ฮG decides feasibility, not rate
โ๏ธ Spontaneous โ fast
โ๏ธ ฮG depends on T, P & composition
โ๏ธ ฮG is state function
1๏ธโฃ4๏ธโฃ #ONELINEREVISION
โ๏ธ Gibbs free energy predicts spontaneity
โ๏ธ ฮG = 0 at equilibrium
โ๏ธ Negative ฮG โ feasible process
โ๏ธ ฮGยฐ related to K and Eยฐ
โ๏ธ Thermodynamic state function
โ๏ธ Determines spontaneity of process
โ๏ธ Denoted by G
๐ Relation:
G = H โ TS
2๏ธโฃ #TERMSINFORMULA
โ๏ธ H โ Enthalpy
โ๏ธ T โ Absolute temperature (K)
โ๏ธ S โ Entropy
๐ Unit of G โ Joule
3๏ธโฃ #CHANGEINGIBBSENERGY
๐ Formula:
ฮG = ฮH โ TฮS
โ๏ธ Applies at constant T & P
4๏ธโฃ #SIGNIFICANCEOFฮG (VERY IMP )
โ๏ธ ฮG < 0 โ Spontaneous process
โ๏ธ ฮG = 0 โ Equilibrium
โ๏ธ ฮG > 0 โ Non-spontaneous
5๏ธโฃ #CASESBASEDONฮHANDฮS
โ๏ธ ฮH < 0 and ฮS > 0
Process spontaneous at all temperatures
โ๏ธ ฮH > 0 and ฮS < 0
Process non-spontaneous at all temperatures
โ๏ธ ฮH < 0 and ฮS < 0
Spontaneous at low temperature
โ๏ธ ฮH > 0 and ฮS > 0
Spontaneous at high temperature
6๏ธโฃ #TEMPERATUREEFFECT
โ๏ธ Increase in T increases importance of entropy term
โ๏ธ TฮS dominates at high temperature
7๏ธโฃ #GIBBSENERGYATEQUILIBRIUM
โ๏ธ At equilibrium:
ฮG = 0
๐ Relation with equilibrium constant:
ฮGยฐ = โRT ln K
8๏ธโฃ #STANDARDGIBBSFREEENERGY
โ๏ธ Measured at:
โ๏ธ 1 bar pressure
โ๏ธ 298 K temperature
๐ Formula:
ฮGยฐ = ฮHยฐ โ TฮSยฐ
9๏ธโฃ #REACTIONQUOTIENTRELATION
๐ Formula:
ฮG = ฮGยฐ + RT ln Q
โ๏ธ Q = reaction quotient
๐ At equilibrium Q = K
๐ #MAXIMUMWORKCONCEPT
โ๏ธ ฮG gives maximum non-expansion work
โ๏ธ Useful in electrochemistry
๐ Electrical work = โฮG
1๏ธโฃ1๏ธโฃ #GIBBSENERGYINELECTROCHEMISTRY
๐ Relation:
ฮGยฐ = โnFEยฐ
โ๏ธ n = number of electrons
โ๏ธ F = Faraday constant
โ๏ธ Eยฐ = standard emf
1๏ธโฃ2๏ธโฃ #UNITSOFฮG
โ๏ธ Joule
โ๏ธ kJ molโปยน (mostly used in chemistry)
1๏ธโฃ3๏ธโฃ #NEET
โ๏ธ ฮG decides feasibility, not rate
โ๏ธ Spontaneous โ fast
โ๏ธ ฮG depends on T, P & composition
โ๏ธ ฮG is state function
1๏ธโฃ4๏ธโฃ #ONELINEREVISION
โ๏ธ Gibbs free energy predicts spontaneity
โ๏ธ ฮG = 0 at equilibrium
โ๏ธ Negative ฮG โ feasible process
โ๏ธ ฮGยฐ related to K and Eยฐ
๐ฅ2๐1๐1
โญ ๐๐๐ ๐ชEE ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐ (๐๐ก, ๐๐, ๐ ๐ ๐ฆ๐ง๐๐ฅ, ๐ ๐๐ & so on) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐ข๐๐ ๐๐๐๐ง๐จ๐ฅ๐๐ฆ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐โ ๐จ๐ก๐๐ ๐ฌ + ๐๐ก ๐@๐ง๐ + ๐ฆ@๐ฉ@๐ + ๐ข๐ง๐๐๐ฅ ๐ง๐ข๐ฃ ๐ง๐๐๐๐๐๐ฅ๐ฆ
โญ ๐จ๐ก๐๐ ๐ฌ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐ (๐ง๐ก๐ , ๐ฅ๐, ๐ฌ๐ฆ๐ฌ, ๐๐๐๐, ๐ฆ๐ง ๐ฆ๐๐ฅ, ๐๐ก๐ฆ๐๐ ๐๐๐ ๐ฆ๐๐ฅ & So On ) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐ฆ@๐ฉ@๐ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐(๐๐ ๐ฆ๐๐ฅ, ๐๐ฆ๐๐๐ฆ๐ ๐๐๐๐ฃ๐๐ฌ๐ ๐ฆ๐๐ฅ, ๐ฃ๐๐ฅ๐ฉ๐๐ญ ๐๐๐๐ก, ๐ฉ๐
๐ฆ๐๐ฅ & ๐ฆ๐ข ๐ข๐ก) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐๐ข๐ฃ๐ฌ๐ฅ๐๐๐๐ง ๐๐๐๐๐จ๐ฃ ๐ข๐ ๐๐๐๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐ ๐ข๐ ๐ง๐๐๐ฆ
โญ ๐ข๐๐ ๐๐๐๐ง๐จ๐ฅ๐๐ฆ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐โ ๐จ๐ก๐๐ ๐ฌ + ๐๐ก ๐@๐ง๐ + ๐ฆ@๐ฉ@๐ + ๐ข๐ง๐๐๐ฅ ๐ง๐ข๐ฃ ๐ง๐๐๐๐๐๐ฅ๐ฆ
โญ ๐จ๐ก๐๐ ๐ฌ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐ (๐ง๐ก๐ , ๐ฅ๐, ๐ฌ๐ฆ๐ฌ, ๐๐๐๐, ๐ฆ๐ง ๐ฆ๐๐ฅ, ๐๐ก๐ฆ๐๐ ๐๐๐ ๐ฆ๐๐ฅ & So On ) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐ฆ@๐ฉ@๐ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐(๐๐ ๐ฆ๐๐ฅ, ๐๐ฆ๐๐๐ฆ๐ ๐๐๐๐ฃ๐๐ฌ๐ ๐ฆ๐๐ฅ, ๐ฃ๐๐ฅ๐ฉ๐๐ญ ๐๐๐๐ก, ๐ฉ๐
๐ฆ๐๐ฅ & ๐ฆ๐ข ๐ข๐ก) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐๐ข๐ฃ๐ฌ๐ฅ๐๐๐๐ง ๐๐๐๐๐จ๐ฃ ๐ข๐ ๐๐๐๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐ ๐ข๐ ๐ง๐๐๐ฆ
โค1๐ฅ1๐1
Chemistry booster series
โญ ๐๐๐ ๐ชEE ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐ (๐๐ก, ๐๐, ๐ ๐ ๐ฆ๐ง๐๐ฅ, ๐ ๐๐ & so on) ๐ฎ๐ฌ๐ฎ๐ฒ โญ ๐ข๐๐ ๐๐๐๐ง๐จ๐ฅ๐๐ฆ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐โ ๐จ๐ก๐๐ ๐ฌ + ๐๐ก ๐@๐ง๐ + ๐ฆ@๐ฉ@๐ + ๐ข๐ง๐๐๐ฅ ๐ง๐ข๐ฃ ๐ง๐๐๐๐๐๐ฅ๐ฆ โญ ๐จ๐ก๐๐ ๐ฌ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐ (๐ง๐ก๐ , ๐ฅ๐, ๐ฌ๐ฆ๐ฌ, ๐๐๐๐, ๐ฆ๐ง ๐ฆ๐๐ฅ, ๐๐ก๐ฆ๐๐ ๐๐๐ ๐ฆ๐๐ฅ & So On ) ๐ฎ๐ฌ๐ฎ๐ฒ โญ ๐ฆ@๐ฉ@๐ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐(๐๐ ๐ฆ๐๐ฅ, ๐๐ฆ๐๐๐ฆ๐ ๐๐๐๐ฃ๐๐ฌ๐โฆ
Join kr lena all bcz in sbke full lec + crash course+ handwriting notes +short notes + test All in one milega
Haar batch ka even more then batch content
Haar batch ka even more then batch content
โค1๐คฉ1๐1
Q1.
Assertion (A): For a spontaneous process at constant temperature and pressure, ฮG is negative.
Reason (R): Spontaneous processes occur with decrease in Gibbs free energy.
Options:
(1) A & R true, R correct explanation
(2) A & R true, R not explanation
(3) A true, R false
(4) A false, R true
Q2.
Assertion (A): When ฮG = 0, the system is at equilibrium.
Reason (R): At equilibrium, forward and backward reaction rates are equal
Q3.
Assertion (A): A reaction with ฮH < 0 and ฮS < 0 is spontaneous at all temperatures.
Reason (R): Decrease in enthalpy always favours spontaneity.
Q5. (Numerical concept)
Assertion (A): If ฮH = โ40 kJ and ฮS = โ100 J Kโปยน, reaction is spontaneous at low temperature.
Reason (R): Negative ฮS disfavors spontaneity at high temperature
๐1๐1๐ณ1
โญ ๐๐๐ ๐ชEE ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐ (๐๐ก, ๐๐, ๐ ๐ ๐ฆ๐ง๐๐ฅ, ๐ ๐๐ & so on) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐ข๐๐ ๐๐๐๐ง๐จ๐ฅ๐๐ฆ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐โ ๐จ๐ก๐๐ ๐ฌ + ๐๐ก ๐@๐ง๐ + ๐ฆ@๐ฉ@๐ + ๐ข๐ง๐๐๐ฅ ๐ง๐ข๐ฃ ๐ง๐๐๐๐๐๐ฅ๐ฆ
โญ ๐จ๐ก๐๐ ๐ฌ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐ (๐ง๐ก๐ , ๐ฅ๐, ๐ฌ๐ฆ๐ฌ, ๐๐๐๐, ๐ฆ๐ง ๐ฆ๐๐ฅ, ๐๐ก๐ฆ๐๐ ๐๐๐ ๐ฆ๐๐ฅ & So On ) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐ฆ@๐ฉ@๐ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐(๐๐ ๐ฆ๐๐ฅ, ๐๐ฆ๐๐๐ฆ๐ ๐๐๐๐ฃ๐๐ฌ๐ ๐ฆ๐๐ฅ, ๐ฃ๐๐ฅ๐ฉ๐๐ญ ๐๐๐๐ก, ๐ฉ๐
๐ฆ๐๐ฅ & ๐ฆ๐ข ๐ข๐ก) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐๐ข๐ฃ๐ฌ๐ฅ๐๐๐๐ง ๐๐๐๐๐จ๐ฃ ๐ข๐ ๐๐๐๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐ ๐ข๐ ๐ง๐๐๐ฆ
โญ ๐ข๐๐ ๐๐๐๐ง๐จ๐ฅ๐๐ฆ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐โ ๐จ๐ก๐๐ ๐ฌ + ๐๐ก ๐@๐ง๐ + ๐ฆ@๐ฉ@๐ + ๐ข๐ง๐๐๐ฅ ๐ง๐ข๐ฃ ๐ง๐๐๐๐๐๐ฅ๐ฆ
โญ ๐จ๐ก๐๐ ๐ฌ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐ (๐ง๐ก๐ , ๐ฅ๐, ๐ฌ๐ฆ๐ฌ, ๐๐๐๐, ๐ฆ๐ง ๐ฆ๐๐ฅ, ๐๐ก๐ฆ๐๐ ๐๐๐ ๐ฆ๐๐ฅ & So On ) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐ฆ@๐ฉ@๐ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐(๐๐ ๐ฆ๐๐ฅ, ๐๐ฆ๐๐๐ฆ๐ ๐๐๐๐ฃ๐๐ฌ๐ ๐ฆ๐๐ฅ, ๐ฃ๐๐ฅ๐ฉ๐๐ญ ๐๐๐๐ก, ๐ฉ๐
๐ฆ๐๐ฅ & ๐ฆ๐ข ๐ข๐ก) ๐ฎ๐ฌ๐ฎ๐ฒ
โญ ๐๐ข๐ฃ๐ฌ๐ฅ๐๐๐๐ง ๐๐๐๐๐จ๐ฃ ๐ข๐ ๐๐๐๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐ ๐ข๐ ๐ง๐๐๐ฆ
โค2๐ฅ1๐1
Chemistry booster series
โญ ๐๐๐ ๐ชEE ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐ (๐๐ก, ๐๐, ๐ ๐ ๐ฆ๐ง๐๐ฅ, ๐ ๐๐ & so on) ๐ฎ๐ฌ๐ฎ๐ฒ โญ ๐ข๐๐ ๐๐๐๐ง๐จ๐ฅ๐๐ฆ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐โ ๐จ๐ก๐๐ ๐ฌ + ๐๐ก ๐@๐ง๐ + ๐ฆ@๐ฉ@๐ + ๐ข๐ง๐๐๐ฅ ๐ง๐ข๐ฃ ๐ง๐๐๐๐๐๐ฅ๐ฆ โญ ๐จ๐ก๐๐ ๐ฌ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐ (๐ง๐ก๐ , ๐ฅ๐, ๐ฌ๐ฆ๐ฌ, ๐๐๐๐, ๐ฆ๐ง ๐ฆ๐๐ฅ, ๐๐ก๐ฆ๐๐ ๐๐๐ ๐ฆ๐๐ฅ & So On ) ๐ฎ๐ฌ๐ฎ๐ฒ โญ ๐ฆ@๐ฉ@๐ ๐๐ฅ๐๐๐ ๐๐ข๐ฅ๐๐(๐๐ ๐ฆ๐๐ฅ, ๐๐ฆ๐๐๐ฆ๐ ๐๐๐๐ฃ๐๐ฌ๐โฆ
Krdo request send jisko bhi need ho bcz ab iske baad link nhi krunga m upload 3 baar copyright aa gya h inme
Link night 12 pr delete
Link night 12 pr delete
โคโ๐ฅ4โค2๐ฅฐ1
1๏ธโฃ #CHEMICALEQUILIBRIUM
โ๏ธ State where forward & reverse reactions occur at same rate
โ๏ธ Concentrations of reactants & products become constant
๐ Example:
Nโ + 3Hโ โ 2NHโ
2๏ธโฃ #EQUILIBRIUMCONSTANT (K)
โ๏ธ Ratio of product concentrations to reactant concentrations
โ๏ธ Each raised to power of stoichiometric coefficient
๐ General reaction:
aA + bB โ cC + dD
๐ Expression:
Kc = [C]แถ[D]แต / [A]แต[B]แต
3๏ธโฃ #TYPESOFEQUILIBRIUMCONSTANT
โ๏ธ Kc โ concentration based
โ๏ธ Kp โ partial pressure based
๐ Relation:
Kp = Kc(RT)โฟ
โ๏ธ n = moles of gaseous products โ moles of gaseous reactants
4๏ธโฃ #SIGNIFICANCEOFK
โ๏ธ Predicts extent of reaction
โ๏ธ Tells position of equilibrium
๐ Values:
โ๏ธ K โซ 1 โ Product favoured
โ๏ธ K โช 1 โ Reactant favoured
โ๏ธ K โ 1 โ Both present
5๏ธโฃ #REACTIONQUOTIENT (Q)
โ๏ธ Same expression as K
โ๏ธ Calculated at any stage of reaction
๐ Comparison:
โ๏ธ Q < K โ reaction proceeds forward
โ๏ธ Q > K โ reaction proceeds backward
โ๏ธ Q = K โ equilibrium
6๏ธโฃ #APPLICATION1DIRECTIONOFREACTION
โ๏ธ Compare Q with K
โ๏ธ Predict spontaneous direction
๐ Very important for numericals
7๏ธโฃ #APPLICATION2DEGREEOFDISSOCIATION
โ๏ธ Used for weak electrolytes
๐ Example:
HA โ Hโบ + Aโป
K = ฮฑยฒC / (1 โ ฮฑ)
โ๏ธ ฮฑ = degree of dissociation
โ๏ธ C = initial concentration
8๏ธโฃ #APPLICATION3IONIZATIONOFWEAKELECTROLYTES
โ๏ธ Acids & bases have small K value
๐ Example:
CHโCOOH โ Hโบ + CHโCOOโป
โ๏ธ Small K โ weak acid
9๏ธโฃ #APPLICATION4CALCULATIONOFCONCENTRATION
โ๏ธ Find unknown equilibrium concentration
โ๏ธ Used in ICE table method
๐ Steps:
โ๏ธ Initial concentration
โ๏ธ Change
โ๏ธ Equilibrium
๐ #APPLICATION5EFFECTOFCHANGINGCONDITIONS
โ๏ธ Temperature change affects K
โ๏ธ Concentration & pressure do NOT change K
๐ Only temperature changes K value
1๏ธโฃ1๏ธโฃ #EFFECTOFTEMPERATURE
โ๏ธ Endothermic reaction:
Temperature โ โ K โ
โ๏ธ Exothermic reaction:
Temperature โ โ K โ
1๏ธโฃ2๏ธโฃ #RELATIONWITHGIBBSFREEENERGY
๐ Formula:
ฮGยฐ = โRT ln K
โ๏ธ ฮGยฐ < 0 โ K > 1 (spontaneous)
โ๏ธ ฮGยฐ > 0 โ K < 1
1๏ธโฃ3๏ธโฃ #HETEROGENEOUSEQUILIBRIUM
โ๏ธ Solids & liquids not included in K
๐ Example:
CaCOโ(s) โ CaO(s) + COโ(g)
Kp = P(COโ)
1๏ธโฃ4๏ธโฃ #REVERSINGREACTION
โ๏ธ K(reverse) = 1 / K(forward)
1๏ธโฃ5๏ธโฃ #MULTIPLYINGREACTION
โ๏ธ If reaction multiplied by n
โ๏ธ New K = Kโฟ
1๏ธโฃ6๏ธโฃ #NEETโ ๏ธ
โ๏ธ K depends only on temperature
โ๏ธ Catalyst does not change K
โ๏ธ Pure solids not included
โ๏ธ Units of K depend on reaction
1๏ธโฃ7๏ธโฃ #ONELINEREVISION
โ๏ธ K predicts extent of reaction
โ๏ธ Q vs K gives direction
โ๏ธ Only temperature affects K
โ๏ธ KpโKc relation important
โ๏ธ State where forward & reverse reactions occur at same rate
โ๏ธ Concentrations of reactants & products become constant
๐ Example:
Nโ + 3Hโ โ 2NHโ
2๏ธโฃ #EQUILIBRIUMCONSTANT (K)
โ๏ธ Ratio of product concentrations to reactant concentrations
โ๏ธ Each raised to power of stoichiometric coefficient
๐ General reaction:
aA + bB โ cC + dD
๐ Expression:
Kc = [C]แถ[D]แต / [A]แต[B]แต
3๏ธโฃ #TYPESOFEQUILIBRIUMCONSTANT
โ๏ธ Kc โ concentration based
โ๏ธ Kp โ partial pressure based
๐ Relation:
Kp = Kc(RT)โฟ
โ๏ธ n = moles of gaseous products โ moles of gaseous reactants
4๏ธโฃ #SIGNIFICANCEOFK
โ๏ธ Predicts extent of reaction
โ๏ธ Tells position of equilibrium
๐ Values:
โ๏ธ K โซ 1 โ Product favoured
โ๏ธ K โช 1 โ Reactant favoured
โ๏ธ K โ 1 โ Both present
5๏ธโฃ #REACTIONQUOTIENT (Q)
โ๏ธ Same expression as K
โ๏ธ Calculated at any stage of reaction
๐ Comparison:
โ๏ธ Q < K โ reaction proceeds forward
โ๏ธ Q > K โ reaction proceeds backward
โ๏ธ Q = K โ equilibrium
6๏ธโฃ #APPLICATION1DIRECTIONOFREACTION
โ๏ธ Compare Q with K
โ๏ธ Predict spontaneous direction
๐ Very important for numericals
7๏ธโฃ #APPLICATION2DEGREEOFDISSOCIATION
โ๏ธ Used for weak electrolytes
๐ Example:
HA โ Hโบ + Aโป
K = ฮฑยฒC / (1 โ ฮฑ)
โ๏ธ ฮฑ = degree of dissociation
โ๏ธ C = initial concentration
8๏ธโฃ #APPLICATION3IONIZATIONOFWEAKELECTROLYTES
โ๏ธ Acids & bases have small K value
๐ Example:
CHโCOOH โ Hโบ + CHโCOOโป
โ๏ธ Small K โ weak acid
9๏ธโฃ #APPLICATION4CALCULATIONOFCONCENTRATION
โ๏ธ Find unknown equilibrium concentration
โ๏ธ Used in ICE table method
๐ Steps:
โ๏ธ Initial concentration
โ๏ธ Change
โ๏ธ Equilibrium
๐ #APPLICATION5EFFECTOFCHANGINGCONDITIONS
โ๏ธ Temperature change affects K
โ๏ธ Concentration & pressure do NOT change K
๐ Only temperature changes K value
1๏ธโฃ1๏ธโฃ #EFFECTOFTEMPERATURE
โ๏ธ Endothermic reaction:
Temperature โ โ K โ
โ๏ธ Exothermic reaction:
Temperature โ โ K โ
1๏ธโฃ2๏ธโฃ #RELATIONWITHGIBBSFREEENERGY
๐ Formula:
ฮGยฐ = โRT ln K
โ๏ธ ฮGยฐ < 0 โ K > 1 (spontaneous)
โ๏ธ ฮGยฐ > 0 โ K < 1
1๏ธโฃ3๏ธโฃ #HETEROGENEOUSEQUILIBRIUM
โ๏ธ Solids & liquids not included in K
๐ Example:
CaCOโ(s) โ CaO(s) + COโ(g)
Kp = P(COโ)
1๏ธโฃ4๏ธโฃ #REVERSINGREACTION
โ๏ธ K(reverse) = 1 / K(forward)
1๏ธโฃ5๏ธโฃ #MULTIPLYINGREACTION
โ๏ธ If reaction multiplied by n
โ๏ธ New K = Kโฟ
1๏ธโฃ6๏ธโฃ #NEETโ ๏ธ
โ๏ธ K depends only on temperature
โ๏ธ Catalyst does not change K
โ๏ธ Pure solids not included
โ๏ธ Units of K depend on reaction
1๏ธโฃ7๏ธโฃ #ONELINEREVISION
โ๏ธ K predicts extent of reaction
โ๏ธ Q vs K gives direction
โ๏ธ Only temperature affects K
โ๏ธ KpโKc relation important
โค3๐2๐2๐ฏ1
โฃ #SOLUBILITYPRODUCT
โ๏ธ Solubility product = product of molar concentrations of ions in saturated solution
โ๏ธ Each concentration raised to power of its stoichiometric coefficient
๐ For salt: AโBแตง
Ksp = [Aโบ]หฃ [Bโป]สธ
2๏ธโฃ #CONDITIONOFAPPLICABILITY
โ๏ธ Salt must be sparingly soluble
โ๏ธ Solution must be saturated
โ๏ธ At constant temperature
.
3๏ธโฃ #IONICDISSOCIATION
โ๏ธ AB(s) โ Aโบ + Bโป
โ๏ธ AโB(s) โ 2Aโบ + Bยฒโป
โ๏ธ ABโ(s) โ Aโบ + 2Bโป
.
4๏ธโฃ #MOLARSOLUBILITY (S)
โ๏ธ Molar solubility = moles dissolved per litre to form saturated solution
๐ Units: mol Lโปยน
โญโญ5๏ธโฃ #KspINTERMSSOLUBILITY (VERY IMP )
5๏ธโฃ1๏ธโฃ For AB
AB โ Aโบ + Bโป
Ksp = Sยฒ
S = โKsp
5๏ธโฃ2๏ธโฃ For AโB
AโB โ 2Aโบ + Bยฒโป
Ksp = (2S)ยฒ(S) = 4Sยณ
S = (Ksp / 4)ยนแยณ
5๏ธโฃ3๏ธโฃ For ABโ
ABโ โ Aโบ + 2Bโป
Ksp = S(2S)ยฒ = 4Sยณ
S = (Ksp / 4)ยนแยณ
5๏ธโฃ4๏ธโฃ For AโB
AโB โ 3Aโบ + Bยณโป
Ksp = (3S)ยณ(S) = 27Sโด
6๏ธโฃ #IONICPRODUCT (IP)
โ๏ธ IP = product of ionic concentrations at any instant
๐ Comparison:
โ๏ธ IP < Ksp โ Unsaturated
โ๏ธ IP = Ksp โ Saturated
โ๏ธ IP > Ksp โ Precipitation
.
7๏ธโฃ #COMMONIONEFFECT (NEET )
โ๏ธ Solubility decreases in presence of common ion
๐ Example:
AgCl solubility โ in NaCl solution
๐ Reason: Equilibrium shifts backward
8๏ธโฃ #EFFECTOFPHONCOMMONION
โ๏ธ Solubility increases if no common ion present
9๏ธโฃ #SELECTIVEPRECIPITATION
โ๏ธ Salt with lower Ksp precipitates first
๐ Used in qualitative analysis
๐ #RELATIONBETWEENSOLUBILITYANDKsp
โ๏ธ Higher Ksp โ higher solubility always
โ๏ธ Depends on stoichiometry of salt
1๏ธโฃ1๏ธโฃ #SOLUBILITYINPRESENCEOFCOMMONION
For AB in presence of Bโป concentration = C
Ksp = S ร C
S = Ksp / C
๐ Used in buffer & salt solutions
1๏ธโฃ2๏ธโฃ #SOLUBILITYINPRESENCEOFPH
โ๏ธ For salts of weak acids โ solubility increases in acidic medium
โ๏ธ For salts of weak bases โ solubility increases in basic medium
๐ Example:
CaCOโ dissolves more in acidic solution
1๏ธโฃ3๏ธโฃ #TEMPERATUREEFFECT
โ๏ธ Ksp increases with temperature (usually)
โ๏ธ Endothermic dissolution favoured
1๏ธโฃ4๏ธโฃ #UNITOFKsp
โ๏ธ Depends on stoichiometry
โ๏ธ No fixed unit
๐ NEET note: Ksp has no unit
1๏ธโฃ5๏ธโฃ #COMPARISONOFKspVALUES
โ๏ธ Compare only salts with same formula type
โ๏ธ Otherwise comparison invalid
1๏ธโฃ6๏ธโฃ #PRECIPITATIONCONDITION
โ๏ธ Precipitation starts when IP just exceeds Ksp
1๏ธโฃ7๏ธโฃ #SOLUBILITYORDER
โ๏ธ Lower Ksp โ lower solubility (for same type salts)
1๏ธโฃ8๏ธโฃ #NEETโ ๏ธTRAPS
โ๏ธ Ksp valid only for saturated solution
โ๏ธ Ksp โ solubility
โ๏ธ Common ion reduces solubility
โ๏ธ Ksp independent of initial concentration
โ๏ธ Compare Ksp only at same temperature
1๏ธโฃ9๏ธโฃ #NUMERICALSHORTCUT
โ๏ธ If Ksp = 10โปยนโฐ for AB
S โ 10โปโต
โ๏ธ If Ksp = 4ร10โปยนยฒ for ABโ
S โ 10โปโด
2๏ธโฃ0๏ธโฃ #ONELINEREVISION
โ๏ธ Ksp = ionic product at saturation
โ๏ธ Precipitation when IP > Ksp
โ๏ธ Common ion โ solubility
โ๏ธ Same Ksp โ same solubility
โ๏ธ Solubility product = product of molar concentrations of ions in saturated solution
โ๏ธ Each concentration raised to power of its stoichiometric coefficient
๐ For salt: AโBแตง
Ksp = [Aโบ]หฃ [Bโป]สธ
2๏ธโฃ #CONDITIONOFAPPLICABILITY
โ๏ธ Salt must be sparingly soluble
โ๏ธ Solution must be saturated
โ๏ธ At constant temperature
.
3๏ธโฃ #IONICDISSOCIATION
โ๏ธ AB(s) โ Aโบ + Bโป
โ๏ธ AโB(s) โ 2Aโบ + Bยฒโป
โ๏ธ ABโ(s) โ Aโบ + 2Bโป
.
4๏ธโฃ #MOLARSOLUBILITY (S)
โ๏ธ Molar solubility = moles dissolved per litre to form saturated solution
๐ Units: mol Lโปยน
โญโญ5๏ธโฃ #KspINTERMSSOLUBILITY (VERY IMP )
5๏ธโฃ1๏ธโฃ For AB
AB โ Aโบ + Bโป
Ksp = Sยฒ
S = โKsp
5๏ธโฃ2๏ธโฃ For AโB
AโB โ 2Aโบ + Bยฒโป
Ksp = (2S)ยฒ(S) = 4Sยณ
S = (Ksp / 4)ยนแยณ
5๏ธโฃ3๏ธโฃ For ABโ
ABโ โ Aโบ + 2Bโป
Ksp = S(2S)ยฒ = 4Sยณ
S = (Ksp / 4)ยนแยณ
5๏ธโฃ4๏ธโฃ For AโB
AโB โ 3Aโบ + Bยณโป
Ksp = (3S)ยณ(S) = 27Sโด
6๏ธโฃ #IONICPRODUCT (IP)
โ๏ธ IP = product of ionic concentrations at any instant
๐ Comparison:
โ๏ธ IP < Ksp โ Unsaturated
โ๏ธ IP = Ksp โ Saturated
โ๏ธ IP > Ksp โ Precipitation
.
7๏ธโฃ #COMMONIONEFFECT (NEET )
โ๏ธ Solubility decreases in presence of common ion
๐ Example:
AgCl solubility โ in NaCl solution
๐ Reason: Equilibrium shifts backward
8๏ธโฃ #EFFECTOFPHONCOMMONION
โ๏ธ Solubility increases if no common ion present
9๏ธโฃ #SELECTIVEPRECIPITATION
โ๏ธ Salt with lower Ksp precipitates first
๐ Used in qualitative analysis
๐ #RELATIONBETWEENSOLUBILITYANDKsp
โ๏ธ Higher Ksp โ higher solubility always
โ๏ธ Depends on stoichiometry of salt
1๏ธโฃ1๏ธโฃ #SOLUBILITYINPRESENCEOFCOMMONION
For AB in presence of Bโป concentration = C
Ksp = S ร C
S = Ksp / C
๐ Used in buffer & salt solutions
1๏ธโฃ2๏ธโฃ #SOLUBILITYINPRESENCEOFPH
โ๏ธ For salts of weak acids โ solubility increases in acidic medium
โ๏ธ For salts of weak bases โ solubility increases in basic medium
๐ Example:
CaCOโ dissolves more in acidic solution
1๏ธโฃ3๏ธโฃ #TEMPERATUREEFFECT
โ๏ธ Ksp increases with temperature (usually)
โ๏ธ Endothermic dissolution favoured
1๏ธโฃ4๏ธโฃ #UNITOFKsp
โ๏ธ Depends on stoichiometry
โ๏ธ No fixed unit
๐ NEET note: Ksp has no unit
1๏ธโฃ5๏ธโฃ #COMPARISONOFKspVALUES
โ๏ธ Compare only salts with same formula type
โ๏ธ Otherwise comparison invalid
1๏ธโฃ6๏ธโฃ #PRECIPITATIONCONDITION
โ๏ธ Precipitation starts when IP just exceeds Ksp
1๏ธโฃ7๏ธโฃ #SOLUBILITYORDER
โ๏ธ Lower Ksp โ lower solubility (for same type salts)
1๏ธโฃ8๏ธโฃ #NEETโ ๏ธTRAPS
โ๏ธ Ksp valid only for saturated solution
โ๏ธ Ksp โ solubility
โ๏ธ Common ion reduces solubility
โ๏ธ Ksp independent of initial concentration
โ๏ธ Compare Ksp only at same temperature
1๏ธโฃ9๏ธโฃ #NUMERICALSHORTCUT
โ๏ธ If Ksp = 10โปยนโฐ for AB
S โ 10โปโต
โ๏ธ If Ksp = 4ร10โปยนยฒ for ABโ
S โ 10โปโด
2๏ธโฃ0๏ธโฃ #ONELINEREVISION
โ๏ธ Ksp = ionic product at saturation
โ๏ธ Precipitation when IP > Ksp
โ๏ธ Common ion โ solubility
โ๏ธ Same Ksp โ same solubility
โค2๐ฏ2๐1