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Mass Transfer

Mass Transfer
In a solution containing 0.30 Kg mole of solute and 600 kg of solvent, the molality is

1
0.5
2
0.6

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Mass Transfer
Dried finished product sampled from various parts of a __________ dryer exhibits non-uniformity in the moisture content.

Tray
None of these
Freeze
Rotary

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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

0.24
0.6
0.72
1

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Mass Transfer
Packed column distillation is limited to the column __________ metres.

Both A & B
Diameter < 0.6
Height < 6
Neither A nor B

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Mass Transfer
The relative volatility of a binary mixture at the azeotropic composition is

∞
> 1
1

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Mass Transfer
The mass transfer co-efficient for a solid sphere of radius 'a' dissolving in a large volume of quiescent liquid, in which D is the diffusivity of solute, is

D/a
Proportional to √D
D/2a
Dependent on the Reynolds number

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