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Mass Transfer

Mass Transfer
When both the fluids flow concurrently in an absorber, the slope of the operating line is

- ve
-1
1
+ ve

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Mass Transfer
Condensation of a vapour-gas mixture just begins, when (where, p = partial pressure of the vapour P = vapour pressure of the liquid )

P
P >>P
P < P
P = P

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Mass Transfer
The amount of steam required per unit quantity of distillate in case of steam distillation will be reduced by

Lowering the total pressure
Neither A nor B
Raising the temperature
Both A & B

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Mass Transfer
To remove all the moisture from a wet solid it requires exposure to __________ air.

High temperature
None of these
Perfectly dry
Highly humid

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Mass Transfer
The suitable evaporator for concentration of foaming liquids is a __________ evaporator.

Long tube
Short tube
Falling film
Vacuum

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Mass Transfer
'ADDUCTS' and 'CLATHRATES' are used in case of

Absorption
Crystallisation
None of these
Extractive distillation

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MORE MCQ ON Mass Transfer

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