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Mass Transfer

Mass Transfer
In a binary system, separation is very efficient, when the relative volatility is

0.5
1
< 1
> 1

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Mass Transfer
Minimum possible diameter of a packed coloumn is decided mainly by the

Liquid density
Gas viscosity
Flooding
Liquid hold up

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Mass Transfer
For the case of flow of air past a wet bulb thermometer (air water vapour system), the approximate value of H₂/ky.Cz is around

1
0.6
0.72
0.24

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Mass Transfer
Wet bulb and dry bulb temperatures becomes identical at __________ percent saturation curve.

78
None of these
100
50

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Mass Transfer
The diffusivity (D) in a binary gas mixture is related to the pressure (P) as

D ∝ P0.5
D ∝ 1/P0.5
D ∝ 1/P
D ∝ 1/P1.5

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Mass Transfer
Lewis number (Le) is

Sc x Pr
Pr x St
Sh x Pr
St x Sh

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MORE MCQ ON Mass Transfer

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