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Mass Transfer

Mass Transfer
H₂S present in naphtha reformed gas is removed by absorbing with

Vacuum gas oil
HCl
Ethanolamine
K₂CO₃

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

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

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Mass Transfer
For ethanol-water system, the lowering of distillate quality from 95% to 92% will cause __________ plate requirement.

Major decrease in the number of
None of the listed here
No change in theoretical
Marginal decrease in the number of

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Mass Transfer
Drift in a cooling tower is

All of these
The water entrained by the circulating air
Dependent on the water lost by evaporation
Desirable

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Mass Transfer
Corresponding to Prandtl number in heat transfer, the dimensionless group in mass transfer is the __________ number.

Schmidt
Sherwood
Peclet
Stanton

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Mass Transfer
Large scale drying of wheat is done in a __________ dryer.

Vacuum rotary
Fluidised bed
Tray
Spouted bed

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