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Mass Transfer

Mass Transfer
When the psychometric ratio is __________ then the adiabatic saturation temperature and wet bulb temperature becomes equal.

?
> 1
1
< 1

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Mass Transfer
Molecular diffusivity of a liquid

Increases with temperature
Decreases with temperature
Is independent of temperature
May increase or decrease with temperature

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Mass Transfer
The equipment used in the extraction of highly corrosive radio active liquids is

Baffle tower
Pulse column
Spray column
Mixer settler

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Mass Transfer
Azeotropism for ethyl alcohol-water system disappears by

Increasing temperature
Increasing pressure
No means
Decreasing pressure

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Mass Transfer
The most economical range of absorption factor is

1.25 to 2
2.5 to 3
2 to 2.5
5 to 10

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Mass Transfer
If moisture content of solid on dry basis is X, then the same on wet basis is

(X + 1)/X
(X - 1)/X
X/(X - 1)
X/(X + 1)

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