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Mass Transfer

Mass Transfer
Rayleigh's equation applies to __________ distillation.

Steam
Flash
Continuous
Differential

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Mass Transfer
With increase in gas rate, the number of transfer units, NtoG, for a fixed degree of absorption by a fixed amount of solvent

Decreases
Decreases linearly
Remains unaffected
Increases

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Mass Transfer
The process employing desorption of the absorbed solute by a solvent is called

Reverse osmosis
Osmosis
Sublimation
Elution

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Mass Transfer
If the path of liquid across the plate is very long as in case of large diameter tower, Murphree efficiency can be __________ percent.

100
None of these
< 100
> 100

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Mass Transfer
Which one of the following devices is not used for both the absorption as well as the liquid-liquid extraction processes?

Plate towers
Spray towers
Packed towers
Wetted wall columns

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Mass Transfer
If the amount of the steam used in steam distillation is increased, the temperature of distillation

Depends on relative volatility
Remains unchanged
Increases
Decreases

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