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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)

D2
D0.5
1/D
D

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Mass Transfer
In a binary system, separation is very efficient, when the relative volatility is

0.5
> 1
< 1
1

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Mass Transfer
A mixture of 10% C₆H₆ vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C.

18.7
21.7
20
27.3

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Mass Transfer
Physical absorption is

A reversible phenomenon
Accompanied by evolution of heat
An irreversible phenomenon
Both B & C

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Mass Transfer
__________ column is preferred to be used, when a high liquid hold up is required in a reactor for gas-liquid reaction.

Spray
Bubble
Tray
Packed

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Mass Transfer
Ion exchange process is similar to

Absorption
Adsorption
Leaching
Extraction

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