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Mass Transfer

Mass Transfer
Boiling point diagram is not affected by the ambient

Humidity
Pressure
Both B and C
Temperature

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Mass Transfer
Hydrogenation of oil is carried out in a/an __________ in Vanaspati manufacturing plant.

Packed tower
Agitated vessel
Sieve tray column
Bubble cap column

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Mass Transfer
Degree of freedom for leaching and solvent extraction process is

2
3
1

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Mass Transfer
Back-trapping in a distillation column

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

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Mass Transfer
The most economical range of absorption factor is

5 to 10
2.5 to 3
2 to 2.5
1.25 to 2

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Mass Transfer
Binary distillation involves the mass transfer by __________ at the gas-liquid interface.

Either A or B
Unidirectional diffusion from gas to liquid phase
A counter diffusion at an almost equal molar rate
Unidirectional diffusion from liquid to gas phase

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