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Mass Transfer

Mass Transfer
Free flowing granular materials can be best dried in a __________ drier.

Drun
Freeze
Rotary
Cylinder

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Mass Transfer
The reciprocal of stripping factor is termed as

Selectivity index
Murphree efficiency
Absorption factor
Relative volatility

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Mass Transfer
'ADDUCTS' and 'CLATHRATES' are used in case of

None of these
Crystallisation
Extractive distillation
Absorption

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Mass Transfer
Steam distillation is used to separate

Heat sensitive materials
Azeotropes
Mixtures of low relative volatility
High boiling substances from nonvolatile impurities

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Mass Transfer
Back-trapping in a distillation column

Is desirable, as it provides improved vapour-liquid contact
Reduces pressure drop
Decreases tray efficiency
Increases tray efficiency

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Mass Transfer
At constant pressure, with increase of temperature, the dew point will

Increase/decrease ; depends on the temperature
Increase
Remain unchanged
Decrease

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