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Mass Transfer

Mass Transfer
The absorption factor is defined as (where, L = liquid flow rate, G = gas flow rate and, m = slope of the equilibrium line)

LG/m
ML/G
G/mL
L/mG

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Mass Transfer
Hypersorption refers to a __________ process.

Fixed bed adsorption
Moving bed absorption
Moving bed adsorption
Fixed bed absorption

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Mass Transfer
The fixed cost of a distillation column at minimum reflux ratio is

Minimum
None of these
Infinite
Optimum

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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
Ordinary diffusion process is also called __________ diffusion.

Concentration
Pressure
Thermal
Forced

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Mass Transfer
The humid volume may be increased by increasing the

Humidity at constant temperature
Temperature at constant humidity
Neither A nor B
Both A & B

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