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Mass Transfer

Mass Transfer
At what value of reflux ratio, number of theoretical plates in a distillation column is minimum?

∞
< 1
1

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Mass Transfer
In a distillation column, with increase in the reflux ratio, the heat removed in the cooler

And the heat required in reboiler decreases
Decreases
Increases
Remains unaffected

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Mass Transfer
In case of liquid-liquid binary diffusion, diffusivity of one constituent into another is not dependent on the

Nature of the constituents
Temperature and pressure
Concentration
None of these

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Mass Transfer
In azeotropic mixture, the equilibrium vapour composition is

More than liquid composition
None of the listed here
Same as liquid composition
Less than liquid composition

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

Ethanolamine
Dilute ammoniacal liquor
Caustic solution
Dilute HCl

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Mass Transfer
For contacting a highly soluble gas with a liquid

Bubble the gas through liquid
None of the listed here
Both of the options given here
Spray the liquid on gas stream

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