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Mass Transfer

Mass Transfer
Desirable value of absorption factor in an absorber is

< 1
0.5
1
> 1

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Mass Transfer
Free flowing granular materials can be best dried in a __________ drier.

Drun
Freeze
Rotary
Cylinder

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Mass Transfer
The Kundsen diffusivity is proportional to (where, T = absolute temperature)

√T
T⁴
T²
T

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Mass Transfer
Reverse osmosis is also called

Diffusion
Ultrafiltration
Electrodilysis
Dialysis

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Mass Transfer
In case of non-ideal gases and liquids, the molal diffusivity

Varies directly as the pressure
Is equal to the volumetric diffusivity
Is independent of pressure
Varies inversely as the pressure

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Mass Transfer
In batch distillation with constant reflux, overhead product composition __________ with time.

Does not vary
May increase on decrease, depends on the system
Increases
Decreases

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