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Mass Transfer

Mass Transfer
In a binary system, separation is very efficient, when the relative volatility is

0.5
> 1
< 1
1

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Mass Transfer
The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model.

None of the listed here
Plug
Perfectly mixed
Both plug & perfectly mixed

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Mass Transfer
The reason for preferring packed towers over plate towers in distillation practice is that the packed tower operation gives

Low pressure drop and low hold up
High pressure drop and low hold up
High pressure drop and high hold up
Low pressure drop and high hold up

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Mass Transfer
It takes 6 hours to dry a wet solid from 50% moisture content to the critical moisture content of 15%. How much longer it will take to dry the solid to 10% moisture content, under the same drying conditions? (The equilibrium moisture content of the solid is 5%).

15 min
71 min
94 min
51 min

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Mass Transfer
Plate efficiency in a distillation column is reduced due to the __________ of liquid.

All of these
Entrainment
Foaming
Weeping & dumping

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Mass Transfer
When the psychometric ratio is __________ then the adiabatic saturation temperature and wet bulb temperature becomes equal.

< 1
?
1
> 1

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MORE MCQ ON Mass Transfer

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