Mass Transfer
Relative volatility does not change appreciably with the change in

Vapour pressure of either component
None of these
Total pressure
Temperature

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Mass Transfer
Plate efficiency

Is a function of the mass transfer between liquid and vapour
Increases due to weeping and dumping of liquid
Increases due to liquid entrainment
Increases due to foaming

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Mass Transfer
Which of the following processes is not an example of adsorption applied to gaseous separations?

Dehumidification of air and gas
Decolouration of yellow glycerene
Recovery of valuable solvent vapors from dilute mixture with air and other gases
Removal of objectionable odour and impurities from industrial gases

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