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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 7
46.
High pressure at the bottom of a distillation tower handling heat sensitive materials results in
thermal decomposition of bottoms.
increased relative volatility.
erosion of the tower.
very efficient operation.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
47.
Alcohol is dehydrated using __________ distillation.
extractive
azeotropic
steam
molecular
Answer: Option
Explanation:
No answer description is available. Let's discuss.
48.
Separation of two volatile liquids by distillation makes use of their
selectivity
relative volatility
solubility
density difference
Answer: Option
Explanation:
No answer description is available. Let's discuss.
49.
Which of the following increases during evaporative cooling process with recirculated water supply ?
Wet bulb temperature
Relative humidity
Partial pressure of vapour
Both (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
50.
Dried finished product sampled from various parts of a __________ dryer exhibits non-uniformity in the moisture content.
rotary
tray
freeze
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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