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Mass Transfer

Mass Transfer
The slope of the operating line for a single component co-current absorber when plotted in terms of mole ratio units is

+ve
-ve
∞

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Mass Transfer
In continuous distillation, the internal reflux ratio (Ri) and the external reflux ratio (Re) are related as

Ri = Re
Ri = Re/(1 - Re)
Ri = Re/(1 + Re)
Ri = (1 - Re)/Re

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Mass Transfer
The relative saturation of an unsaturated mixture of gas and vapor is independent of the

Temperature of the mixture
Nature of the vapor
Composition of the mixture
None of these

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

Caustic solution
Ethanolamine
Dilute HCl
Dilute ammoniacal liquor

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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
Gaseous diffusion co-efficient increases with increase in the

Pressure
Both Pressure & Temperature
Temperature
None of the listed here

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