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Mass Transfer

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

Rotary
Drun
Freeze
Cylinder

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Mass Transfer
Selectivity of the solvent used in solvent extraction should be

> 1
< 1
1

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Mass Transfer
The diffusivity (D) in a binary gas mixture is related to the pressure (P) as

D ∝ P0.5
D ∝ 1/P
D ∝ 1/P1.5
D ∝ 1/P0.5

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

T
√T
T⁴
T²

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Mass Transfer
Ammonia present in the coke oven gas is removed by washing with

Dilute ammoniacal liquor
Dilute HCl
Caustic solution
Ethanolamine

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Mass Transfer
Gaseous diffusion co-efficient increases with increase in the

Both Pressure & Temperature
None of the listed here
Temperature
Pressure

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