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MASS TRANSFER

Mass Transfer
The reciprocal of stripping factor is termed as

Murphree efficiency
Selectivity index
Absorption factor
Relative volatility

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Mass Transfer
Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.

Molal
Relative
Percentage
None of these

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Mass Transfer
Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as adsorption hysterisis. In such cases, the desorption equilibrium pressure is __________ that obtained for adsorption.

Lower than
Either same or higher than
Higher than
Same as

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Mass Transfer
Freundlich equation applies to the adsorption of solute from

Concentrated solutions
None of these
Dilute solutions, over a small concentration range
Gaseous solutions at high pressure

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Mass Transfer
The relative volatility of a binary mixture at the azeotropic composition is

1
∞
> 1

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