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Mass Transfer

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

Less
Same
More
Unpredictable

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Mass Transfer
Physical absorption is

Accompanied by evolution of heat
A reversible phenomenon
Both B & C
An irreversible phenomenon

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Mass Transfer
In case of unsaturated air

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

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Mass Transfer
Flash distillation is suitable for the separation of components

Which form maximum boiling azeotrope
Which form minimum boiling azeotrope
Having very wide boiling points
Having very close boiling points

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Mass Transfer
The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model.

Both plug & perfectly mixed
Perfectly mixed
Plug
None of the listed here

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Mass Transfer
Critical humidity of a solid salt means the humidity

Below which it will always stay dry
Above Which it will always become dry and below which it will always stay damp
Both A and B
Above which it will always become damp

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