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Mass Transfer

Mass Transfer
Tea percolation employs

Liquid-liquid extraction
Absorption
Leaching
None of these

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

> 1
1
< 1

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Mass Transfer
At a fixed pressure, the humidity depends upon the partial pressure of vapor in the mixture. Humidity of a vapour free gas is __________ percent.

Between 0 and 100
50
100

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Mass Transfer
With decrease in the throughput (compared with the design capacity) for a bubble cap distillation column, its efficiency

Increases
May increase or decrease ; depends on individual design
Remains same
Decreases

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

Falling film
Vacuum
Long tube
Short tube

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Mass Transfer
Which of the following solutions will follow Raoult's law most closely?

A solution of polar organic compounds (not of homologs of a series)
35% solution of NH₃ in water
35% solution of camphor in water
A solution of benzene, toluene and oxylene

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