What is another term for freeze drying?
Anonymous Quiz
92%
A) Lyophilization
1%
B) Desiccation
5%
C) Congealing
3%
D) Evaporation
During which stage of freeze drying does sublimation occur?
Anonymous Quiz
26%
A) Pre-freezing
15%
B) Vacuum
48%
C) Primary drying
12%
D) Secondary drying
👏3
How is bound water or traces of water removed in freeze drying?
Anonymous Quiz
76%
A) By raising the temperature or using a desiccant
11%
B) By applying a vacuum
10%
C) By pre-freezing the materia
4%
D) By microwave energy
What is the main advantage of microwave drying over conventional drying methods?
Anonymous Quiz
9%
A) More uniform drying
3%
B) Slower drying rate
85%
C) Extremely rapid heat transfer throughout the material
3%
D) Lower energy consumption
In microwave drying, how is the energy in the form of microwaves converted?
Anonymous Quiz
80%
A) Into internal heat by interaction with the material
16%
B) Into external heat by interaction with the material
2%
C) Into light energy
3%
D) Into mechanical energy
In which form is moisture mobilized in microwave drying?
Anonymous Quiz
9%
A) As a liquid
72%
B) As a vapor
16%
C) As a solid
4%
D) As a gel
Which drying method is most suitable for drying heat-sensitive materials?
Anonymous Quiz
35%
A) Spray drying
4%
B) Flash drying
50%
C) Freeze drying
10%
D) Microwave drying
👏2
In which stage of freeze drying is vacuum applied?
Anonymous Quiz
16%
A) Pre-freezing
74%
B) Vacuum
7%
C) Primary drying
4%
D) Secondary drying
What is the main purpose of secondary drying in freeze drying?
Anonymous Quiz
85%
A) To remove bound water or traces of water left after primary drying
5%
B) To provide latent heat of sublimation
4%
C) To freeze the material before applying vacuum
6%
D) To remove the unbound wate
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