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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)

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

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Mass Transfer
Fenske-Underwood equation used for calculating the minimum number of theoretical plates in distillation column is valid for

Constant relative volatility
All of these
Total reflux
Constant molal overflow

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Mass Transfer
Can the efficiency of a plate in the distillation tower be greater than 100%?

Yes ; if the reflux ratio is maximum
Yes
Never
Normally not; but is possible if infinite number of plates are put

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Mass Transfer
Humidity chart is useful for the solution of problems concerning condensation, vaporisation and air conditioning. At a given dry bulb temperature, value of humidity obtained from the humidity chart directly, is in terms of __________ humidity.

Molal
None of these
Relative
Percentage

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Mass Transfer
Rate of leaching increases with increasing

Size of the solid
Temperature
Pressure
Viscosity of solvent

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Mass Transfer
Molarity is defined as the number of gm moles of solute per __________ of solvent.

c
Gm
Kg
Litre

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