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Mass Transfer

Mass Transfer
Penetration model (theory) for mass transfer was enunciated by

Kissinevskii
Danckwerts
Toor and Marchello
Higbie

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Mass Transfer
Capacity of a rotary dryer depends on its

Both Inclination with ground surface & R.p.m
None of the listed here
R.p.m
Inclination with ground surface

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Mass Transfer
Air at a particular humidity is heated in a furnace. The new dew point

Remain unchanged
Increases
Decreases
Depends on the extent of heating

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Mass Transfer
In the absorption of ammonia in water, the main resistance to absorption is by the __________ phase.

Neither A nor B
Both A & B
Gas
Liquid

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Mass Transfer
The caking of crystals can be prevented by

Maintaining low critical humidity
Maintaining high critical humidity
Both A and C
Coating the product with inert material

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Mass Transfer
During drying of a solid, the critical moisture content increases with

Increased thickness of the solid
Increased drying rate
Both B and C
Decreased drying rate

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