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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)

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

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Mass Transfer
Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature.

Less than
Either A or B; depends on the solid
More than
Equal to

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Mass Transfer
Diffusion in concentrated solutins differs from that in dilute solutions, because of the change in the __________ with the concentration of the solution.

Degree of ideality
Neither A nor B
Viscosity
Both A & B

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Mass Transfer
Smoke is an example of

Solid dispersed in gas
Gas dispersed in liquid
Liquid dispersed in gas
Solid dispersed in liquid

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Mass Transfer
In case of unsaturated air

None of the listed here
Both of the options given here
Dew point < wet bulb temperature
Wet bulb temperature < dry bulb temperature

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Mass Transfer
For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.

Major decrease in the number of
Marginal decrease in the number of
None of the listed here
No change in theoretical

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