Mass Transfer
Mass transfer co-efficient of liquid is

Affected more by temperature than that for gases
Not affected by the temperature
Affected much less by temperature than that for gases
None of these

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Mass Transfer
When the liquid phase and vapour phase of a binary system obeys Raoult's and Dalton's law respectively, the relative volatility is the ratio of

Vapour pressure of component A to the total pressure
Partial pressure of component A to the total pressure
Vapour pressure of component A to the partial pressure of A
Vapour pressure of component A to that of component B

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Mass Transfer
Inside the distillation column, the

Pressure increases gradually from bottom to the top of the column
Driving force for the vapour flow is the pressure drop
Liquids are not always at their bubble points
None of these

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Mass Transfer
In case of a desorber (stripper), the

Temperature remains unaffected
Operating line always lies above the equilibrium curve
Temperature always increases
Operating line always lies below the equilibrium curve

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