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Mass Transfer

Mass Transfer
Reverse osmosis is also called

Electrodilysis
Diffusion
Ultrafiltration
Dialysis

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Mass Transfer
Desirable value of absorption factor in an absorber is

> 1
< 1
1
0.5

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Mass Transfer
Binary distillation involves the mass transfer by __________ at the gas-liquid interface.

Unidirectional diffusion from liquid to gas phase
Unidirectional diffusion from gas to liquid phase
Either A or B
A counter diffusion at an almost equal molar rate

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Mass Transfer
Calcium ammonium nitrate (a fertiliser) is dried in a __________ dryer.

Vacuum
Tray
Rotary
Tunnel

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Mass Transfer
Absorption factor is defined as (where, S₁ = slope of the operating line S₂ = slope of the equilibrium curve)

S₂/S₁
S₁ x S₂
S₁/S₂
S₁ - S₂

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Mass Transfer
McCabe-Thiele method of binary distillation does not assume that the

Heat of mixing is negligible
Molar latent heats of all components are equal
None of these
Sensible heat changes are negligible compared with latent heat changes

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