Which of the equation correct refer to definition of formation, CH3OH (g).
Anonymous Quiz
58%
C(s) + 2H2(g) + 1/2O2(g) ----> CH3OH (g)
15%
CH3(g) + OH(g) ----> CH3OH (g)
17%
C(s) + H2(g) + OH2(g) ----> CH3OH (g)
10%
C(s) + H4(g) + O(g) ----> CH3OH (g)
Lattice energy :
Energy released when 1 mole of solid ionic compound formed from its gaseous ions. Which of the equation refer for this definition.
Energy released when 1 mole of solid ionic compound formed from its gaseous ions. Which of the equation refer for this definition.
Anonymous Quiz
55%
Na+(g) + Cl-(g) ---------> NaCl (s)
9%
Na+(aq) + Cl-(aq) ---------> Na+Cl- (s)
18%
Na(s) + 1/2 Cl2(g) --------> NaCl (s)
18%
NaCl (s) ----------> Na+(g) + Cl-(g)
Given the enthalpy of formation NO2(g);
1/2N2(g) + O2(g) β NO2(g) , ΞH = +33.0 kJ Calculate enthalpy of combustion, N2(g)
1/2N2(g) + O2(g) β NO2(g) , ΞH = +33.0 kJ Calculate enthalpy of combustion, N2(g)
Anonymous Quiz
34%
ΞH = +66.0 kJ/mol
16%
ΞH = -33.18 kJ/mol
30%
ΞH = +16.5 kJ/mol
20%
ΞH = +33.0 kJ/mol
Which of equation example for the definition:
"The heat release when 1 mol of substance is burned completely in excess oxygen"
"The heat release when 1 mol of substance is burned completely in excess oxygen"
Anonymous Quiz
8%
HCl(aq) + NaOH(aq) β NaCl (aq) + H2O(l)
86%
C2H6(l) + 7/2 O2(g) β 2CO2(g) + 3H2O(l)
4%
C(s) + 2H2(g) β CH4(g)
2%
Cl-(g) β Cl-(aq)
Based on this equation, enthalpy of neutralization must be 1 mol of:
HCl(aq) + KOH(aq) β KCl (aq) + H2O(l)
HCl(aq) + KOH(aq) β KCl (aq) + H2O(l)
Anonymous Quiz
15%
HCl(aq)
8%
KOH(aq)
30%
KCl(aq)
48%
H2O(l)
π1
Which of the following equation not the enthalpy of atomisation:
Anonymous Quiz
24%
Mg(s) β Mg(g)
35%
1/2Cl2(g) β Cl(g)
31%
Al(l) β Al(g)
10%
1/2Br2(l) β Br(g)
Enthalpy combustion:
"The heat release when 1 mol of ____________ is burned completely in excess oxygen"
"The heat release when 1 mol of ____________ is burned completely in excess oxygen"
Anonymous Quiz
37%
compound
49%
substance
6%
water
9%
element
Define enthalpy solution:
Anonymous Quiz
28%
the heat change when 1 mole of a compound is formed from its elements
48%
the heat change when 1 mole of a substance is dissolves in excess water to form a very dilute soln
15%
the heat released when 1 mole of gaseous ions is hydrated in water
10%
the heat absorbed when 1 mole of gaseous atoms is formed from its element
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