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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
G/mL
L/mG
ML/G

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Mass Transfer
Rotary dryers cannot handle __________ materials.

Grannular
Sticky
Free flowing
Dry

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Mass Transfer
For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams

Remains unaffected
Passes through a maximum
Decreases
Increases

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Mass Transfer
Ordinary diffusion process is also called __________ diffusion.

Concentration
Pressure
Thermal
Forced

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Mass Transfer
At __________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation.

Minimum
Maximum permissible
Operating
Total

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Mass Transfer
Make up water is required in a cooling tower to replace the water lost by

All of these
Blowdown and leakage
Drift
Evaporation

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