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Mass Transfer

Mass Transfer
Rayleigh's equation applies to __________ distillation.

Differential
Steam
Flash
Continuous

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Mass Transfer
Penetration theory relates the average mass transfer co-efficient (K) with diffusivity (D) as

K ∝ D2
K ∝ D
K ∝ D1.5
K ∝ √D

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

1
5 to 10
1 to 5
> 10

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Mass Transfer
The temperature of water cooled in cooling tower is always __________ temperature of entering air.

Equal to the dry bulb
Less than the wet bulb
Equal to the wet bulb
More than the wet bulb

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Mass Transfer
The-relative volatility for separation of a non-ideal binary mixture by distillation should be

< 1
1
> 1

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Mass Transfer
Sodium bicarbonate is produced during soda ash manufacture using a __________ tower.

Plate
Baffle
None of these
Packed

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