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Mass Transfer

Mass Transfer
Desirable value of absorption factor in an absorber is

< 1
> 1
1
0.5

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Mass Transfer
Ammonia present in the coke oven gas is removed by washing with

Caustic solution
Dilute HCl
Dilute ammoniacal liquor
Ethanolamine

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Mass Transfer
The relative volatility of a binary mixture at constant temperature __________ the total pressure.

Decreases with increase in
Is independent of
Increases with increase in
None of these

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Mass Transfer
With increase in temperature, the mutual solubility of two liquids

Increases
Remains unchanged
Decreases exponentially
Decreases

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Mass Transfer
Raschig ring made of procelain cannot be used for treating concentrated

Nitric acid
Alkalis
Hydrochloric acid
Sulphuric acid

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Mass Transfer
Diameter of raschig rings used in packed tower in industry is normally around __________ inches.

18
12
8
2

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