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Mass Transfer

Mass Transfer
In paper industry, paper is dried in a __________ dryer.

Festoon
Conveyor
Tunnel
Heated cylinder

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Mass Transfer
Steady state equimolal counter diffusion is encountered in

All liquid-liquid diffusion systems
Absorption of NH₃ from air by water
Separation of a binary mixture by distillation
All of these

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

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

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Mass Transfer
The relative humidity of air decreases in-spite of an increase in the absolute humidity, when the

Pressure falls
Pressure rises
Temperature falls
Temperature rises

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Mass Transfer
In case of liquids, the binary diffusivity is proportional to (where, T = temperature)

1/T
T²
√T
T

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Mass Transfer
Gaseous diffusion co-efficient increases with increase in the

Pressure
Temperature
Both Pressure & Temperature
None of the listed here

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