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Mass Transfer

Mass Transfer
Cox chart is useful in the design of

Evaporator
Crystalliser
Dryer
Distillation column

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Mass Transfer
Schmidt number is given by

Re.Pe
Μ/ρDAB
Re/Pe
Sh x Pe

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Mass Transfer
Mass transfer co-efficient 'K' according to penetration theory varies with mass dif-fusivity as

D1.5
1/D
D0.5
D

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Mass Transfer
When the psychometric ratio is __________ then the adiabatic saturation temperature and wet bulb temperature becomes equal.

1
?
< 1
> 1

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

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

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Mass Transfer
Stage efficiency in a leaching process depends on the

Rate of diffusion of the solute through the solid and into the liquid
Time of contact between the solid and the solution
Both A & B
Vapour pressure of the solution

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