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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

Same
Less
Unpredictable
More

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Mass Transfer
Total reflux in a distillation operation requires minimum

Condenser load
All of these
Number of plates
Reboiler load

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Mass Transfer
In case of absorption, both the operating and equilibrium lines will be straight for

Dilute solutions and isothermal operation
Dilute solutions
None of these
Isothermal operation

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Mass Transfer
The drying time between fixed moisture content within diffusion controlled 'falling rate period' is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid )

√T
T
T²
T³

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Mass Transfer
Desirable value of absorption factor in an absorber is

0.5
> 1
< 1
1

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Mass Transfer
Humidification involves mass transfer between a pure liquid phase and a fixed gas, which is

Non-ideal in nature
Soluble in the liquid
At a fixed temperature
Insoluble in the liquid

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