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Mass Transfer

Mass Transfer
Paper industry employs __________ driers.

Rotary
Spray
Fluidised bed
Cylinder

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Mass Transfer
With increase in gas rate, the number of transfer units, NtoG, for a fixed degree of absorption by a fixed amount of solvent

Remains unaffected
Decreases
Decreases linearly
Increases

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Mass Transfer
Alcohol is dehydrated using __________ distillation.

Extractive
Steam
Azeotropic
Molecular

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Mass Transfer
Absorption accompanied with chemical reaction is exemplified by the absorption of

SO₂ in alkaline solution
All of these
Benzol present in coke oven gas by wash oil
Ammonia in water

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Mass Transfer
Which of the following decreases during evaporative cooling process with recirculated water supply?

Relative humidity
Partial pressure of vapour
None of these
Wet bulb temperature

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Mass Transfer
In McCabe-Thiele method of theoretical plate calculation for a distillation column, the operating lines of stripping and rectifying sections coincide with the diagonal at __________ reflux.

Minimum
Operating
Maximum permissible
Total

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