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Mass Transfer

Mass Transfer
A good solvent used for absorption should not have very high

Vapor pressure
Freezing point
All of these
Viscosity

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Mass Transfer
Critical humidity of a solid salt means the humidity

Below which it will always stay dry
Above Which it will always become dry and below which it will always stay damp
Both A and B
Above which it will always become damp

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Mass Transfer
As per Gilliland's equation, the diffusivity is

Directly proportional to 'T1.5'
All of these
Dependent on the molecular volume & molecular weight of components
Inversely proportional to 'P'

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Mass Transfer
The film penetration model of mass transfer was enunciated by

Fick
Gilliland
Stefan
Toor and Marchello

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Mass Transfer
In a packed tower, the value of HETP equals HTUOG, when the equilibrium and the operating lines are (where, HETP = height equivalant to a theoretical plate HTUOG = overall gas phase height of a transfer unit)

Straight
Both A & B
Parallel
Neither A nor B

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Mass Transfer
Which of the following is not a batch drier?

Agitated pan drier
Vacuum shelf drier
Truck drier
Fluidised bed drier

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