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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
During sensible cooling process

Both B and C
Relative humidity decreases
Relative humidity increases
Wet bulb temperature decreases

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Mass Transfer
With increase in solvent rate, the number of transfer units, NtoG, for a fixed degree of absorption from a fixed amount of gas

Decreases
Remains same
Decreases linearly
Increases

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Mass Transfer
Weight of 1 m³ of humid air as compared to 1 m³ of dry air, under the same conditions, is

Same
More
Unpredictable
Less

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Mass Transfer
Occurrence of 'case hardening' during drying of a high moisture solid cake __________ the drying rate.

Does not affect
Exponentially increases
Decreases
Increases

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Mass Transfer
The commonly used solvent in supercritical extraction is

Carbon dioxide
Water
Carbon tetrachloride
Methyl ethyl ketone

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