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Mass Transfer

Mass Transfer
Boiling point diagram is not affected by the ambient

Both B and C
Temperature
Humidity
Pressure

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Mass Transfer
The solvent used in liquid-liquid extraction should have __________ less than one.

Selectivity
Distribution co-efficient
Neither A nor B
Both A & B

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Mass Transfer
Physical absorption is

An irreversible phenomenon
A reversible phenomenon
Both B & C
Accompanied by evolution of heat

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Mass Transfer
Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as

K ∝ √D
K ∝ D
K ∝ D1.5
K ∝ D2

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Mass Transfer
Extraction of coffee from its seed is done by

Liquid-liquid extraction
Extractive distillation
Steam distillation
Leaching

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

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