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Mass Transfer

Mass Transfer
Milk is dried usually in a __________ dryer.

Tray
Rotary
Freeze
Spray

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Mass Transfer
In extraction, as the temperature increases, the area of hetrogeneity (area covered by binodal curve)

Remains unchanged
None of these
Decreases
Increases

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

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Mass Transfer
Deairation (removal of O₂) of water is done by

Adsorption
Rectification
Ion-exchange
Absorption

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Mass Transfer
Relative volatility does not change appreciably with the change in

None of these
Temperature
Total pressure
Vapour pressure of either component

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Mass Transfer
Dry bulb temperature of the gas is __________ the wet bulb temperature.

None of these
Less than
Equal to
More than

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