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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 recovery of pencillin from the acidified fermentation broth is done by

Absorption
Evaporation
Distillation
Liquid extraction

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Mass Transfer
At what value of reflux ratio, number of theoretical plates in a distillation column is minimum?

1
∞
< 1

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Mass Transfer
The most efficient cooling tower out of the following is

Natural draft
Forced draft
Atmospheric
Induced draft

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Mass Transfer
In batch distillation with constant reflux, overhead product composition __________ with time.

Does not vary
Increases
May increase on decrease, depends on the system
Decreases

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Mass Transfer
When an unsaturated air-water mixture is heated at constant pressure, then

The partial pressure of water vapour increases
The specific humidity decreases
The relative humidity decreases
The relative humidity increases

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