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Mass Transfer

Mass Transfer
Reverse osmosis is also called

Diffusion
Ultrafiltration
Dialysis
Electrodilysis

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Mass Transfer
During sensible cooling process

Relative humidity increases
Wet bulb temperature decreases
Relative humidity decreases
Both B and C

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Mass Transfer
Positive deviation from Raoult's law means a mixture whose total pressure is

Less than that computed for ideality
Less than the sum of the vapour pressure of the components
Greater than that computed for ideality
None of these

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Mass Transfer
According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B? Assume that relative volatility (αAB = 2) does not change appreciably in the coloumn.

6
10
12
8

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Mass Transfer
Smoke is an example of

Liquid dispersed in gas
Solid dispersed in liquid
Gas dispersed in liquid
Solid dispersed in gas

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Mass Transfer
Mass transfer co-efficient varies as DAB0.5, according to the __________ theory.

Film
Penetration
None of these
Surface renewal

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