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Mass Transfer

Mass Transfer
Deairation (removal of O₂) of water is done by

Adsorption
Ion-exchange
Absorption
Rectification

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Mass Transfer
For the case of flow of air past a wet bulb thermometer (air water vapour system), the approximate value of H₂/ky.Cz is around

1
0.6
0.72
0.24

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Mass Transfer
Moisture in a substance exerting an equilibrium vapour pressure less than that of pure liquid at the same temperature is called the __________ moisture.

Critical
None of these
Bound
Unbound

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Mass Transfer
The commonly used solvent in supercritical extraction is

Carbon tetrachloride
Carbon dioxide
Water
Methyl ethyl ketone

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Mass Transfer
The unit of volumetric diffusivity is

Cm³/sec
Cm/sec
Cm²/sec
Cm²/seC₂

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Mass Transfer
The expression, y(1 - x)/x(1 - y) is for

Murphree efficiency
Absorption factor
Relative volatility
Selectivity

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MORE MCQ ON Mass Transfer

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