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Mass Transfer

Mass Transfer
In case of gases, the binary diffusivity is proportional to (where, P = pressure)

P
√P
1/P
1/√P

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Mass Transfer
Decoction refers to the use of solvent

At ambient temperature
None of these
At its boiling point
In its vapor form

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Mass Transfer
Dry bulb temperature of unsaturated air is more than its __________ temperature.

Wet bulb
Neither A nor B
Dew point
Both A & B

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Mass Transfer
Agitator is provided in a crystalliser for

Avoiding deposition on cooler surfaces
Formation of nuclei
Crystal growth
All of these

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Mass Transfer
The temperature of water cooled in cooling tower is always __________ temperature of entering air.

More than the wet bulb
Equal to the wet bulb
Less than the wet bulb
Equal to the dry bulb

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Mass Transfer
Drift in a cooling tower is

Dependent on the water lost by evaporation
All of these
The water entrained by the circulating air
Desirable

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