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Mass Transfer

Mass Transfer
If f = moles of vapour present per mole of feed, then the slope of feed line is

- (f - 1)/f
(1 - f)/f
- 1/f
- f/(1 - f)

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Mass Transfer
Cox chart is useful in the design of

Distillation column
Crystalliser
Evaporator
Dryer

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Mass Transfer
Sticky material can be dried in a __________ dryer.

Rotary
Fluidised bed
None of these
Tray

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Mass Transfer
A minimum boiling azeotrope is exemplified by

Water-isobutyl alcohol
Acetone-carbon disulphide
Toluene-benzene
None of these

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Mass Transfer
At a fixed total pressure, humidity depends only on the

None of these
Density of the vapour
Partial pressure of vapour in the mixture
Heat capacity of the vapour

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Mass Transfer
Separation of two volatile liquids by distillation makes use of their

Selectivity
Solubility
Density difference
Relative volatility

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