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Mass Transfer

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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Mass Transfer
Flooding in a vapor-liquid contacting equipment occurs in a tray, when the pressure drop through a tray is __________ the liquid head available in the downcomer.

Less than
More than
Same as
Very much less

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Mass Transfer
Pick out the system with minimum boiling azeotrope at 1 atm.

All of these
Ethyl alcohol-water
Benzene-toluene
Hydrochloric acid-water

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

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Mass Transfer
An azeotropic mixture is a __________ mixture.

Constant boiling point
None of these
Ternary
Binary

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Mass Transfer
The boiling points of pure components of a binary system __________ with increase in total pressure of the system.

Increases
Remains unchanged
May increase or decrease, depends on the system
Decreases

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