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Mass Transfer

Mass Transfer
Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be

> 1
≤ 1
< 1
1

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Mass Transfer
__________ extractor is used for the concentration of radioactive nuclear waste.

Pulsed column
Mixer-settler
Seive plate
None of the listed here

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Mass Transfer
The vapour pressure exerted by the moisture contained in a wet solid depends upon the

Nature of the solid
Temperature
All of these
Nature of the moisture

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Mass Transfer
Total reflux in a distillation operation requires minimum

All of these
Condenser load
Reboiler load
Number of plates

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Mass Transfer
The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is

D/a
Proportional to √D
D/2a
Dependent on the Reynolds number

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

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

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