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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 13
11.
Molecular distillation is
high temperature distillation
for heat-sensitive materials
very low pressure distillation
both (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Drying of a wet solid under constant drying conditions means the exposure of the wet solid to the air of constant
humidity
velocity
temperature
all (a), (b) & (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Which of the following provides maximum contact surface for a liquid-vapour system?
Packed tower
Bubble-cap plate column
Seive-plate column
Wetted wall column
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
For experimental determination of mass transfer co-efficient by wetted wall tower, the mass transfer area is
calculated
unknown
known
not required
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
In stripping section of continuous distillation column, the
liquid is stripped of high boiler.
liquid is enriched with high boiler.
vapour is stripped of low boiler.
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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