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Mass Transfer

Mass Transfer
According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity)

D0.5
D2
1/D
D

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Mass Transfer
The cooling effect in a cooling tower can not be increased by

None of these
Lowering the barometric pressure
Increasing the air velocity over the wet surfaces
Reducing the humidity of entering air

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Mass Transfer
Hydrogenation of oil is carried out in a/an __________ in Vanaspati manufacturing plant.

Packed tower
Agitated vessel
Bubble cap column
Sieve tray column

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Mass Transfer
Heat sensitive materials with very high latent heat of vaporisation may be economically separated using

Evaporation
Absorption
Liquid extraction
Distillation

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Mass Transfer
Deairation (removal of O₂) of water is done by

Adsorption
Rectification
Ion-exchange
Absorption

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Mass Transfer
Packed column distillation is limited to the column __________ metres.

Neither A nor B
Diameter < 0.6
Both A & B
Height < 6

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