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Chemical Engineering - Mass Transfer

Exercise : Mass Transfer - Section 1
6.
Total reflux in a distillation operation requires minimum
reboiler load
number of plates
condenser load
all (a), (b) and (c)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
The amount of steam required per unit quantity of distillate in case of steam distillation will be reduced by
raising the temperature.
lowering the total pressure.
both (a) and (b).
neither (a) nor (b).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
The difference of wet bulb temperature and adiabatic saturation temperature of unsaturated mixture of any system is
+ve
-ve
zero
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
Fenske's equation for determining the minimum number of theoretical stages in distillation column holds good, when the
relative volatility is reasonably constant.
mixture (to be separated) shows negative deviation from ideality.
mixture (to be separated) shows positive deviation from ideality.
multicomponent distillation is involved.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
When the temperature and humidity of air is low, we usually use __________ draft cooling tower.
natural
forced
induced
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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