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Mass Transfer

Mass Transfer
Liquid diffusivity is of the order of __________ cm² /second.

10-5 to 10-6
0.1
0.01
> 1

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Mass Transfer
Gaseous diffusivity at atmospheric pressure is of the order of __________ cm²/second.

5 to 10
> 10
1 to 5
1

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Mass Transfer
The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture.

All of these
Temperature
Total pressure
Composition

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Mass Transfer
CO₂ can be absorbed by

Heated charcoal
Hot cupric oxide
Cold Ca(OH)₂
Alumina

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Mass Transfer
All moisture in a non-hygroscopic material is the __________ moisture.

Equilibrium
Free
Bound
Unbound

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Mass Transfer
Azeotropism for ethyl alcohol-water system disappears by

Increasing pressure
No means
Increasing temperature
Decreasing pressure

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