Mass Transfer
The change in enthalpy, when a unit quantity of gas is absorbed by relatively large quantity of adsorbent (on which a definite concentration of the adsorbed gas already exists) is termed as the

Integral heat of adsorption
Heat of wetting
Differential heat of adsorption
None of these

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Mass Transfer
Heat load in a cooling tower

Neither A nor B
Both A & B
Is equal to the number of kg, of water circulated times the cooling range
Means the amount of heat thrown away (KCal/hr.) by the cooling tower

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Mass Transfer
Inside the distillation column, the

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

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