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Mass Transfer

Mass Transfer
Selectivity of the solvent used in solvent extraction should be

1
< 1
> 1

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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
Raising the temperature
Both A & B
Neither A nor B

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Mass Transfer
In a solution containing 0.30 Kg mole of solute and 600 kg of solvent, the molality is

2
1
0.5
0.6

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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
The adiabatic saturation curve for a vapour-gas mixture is

Slightly concave upward
Slightly concave downward
Straight line
None of these

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Mass Transfer
Which is the controlling factor for a drum drier?

Heat transfer
Diffusion
Neither A nor B
Both A & B

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