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Mass Transfer

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
(NSh/NRe.NSc) is termed in mass transfer operation as the

Thermal diffusivity
Momentum diffusivity
Stanton number
Peclet number

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Mass Transfer
If f = moles of vapour present per mole of feed, then the slope of feed line is

- 1/f
- (f - 1)/f
- f/(1 - f)
(1 - f)/f

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Mass Transfer
Extraction of coffee from its seed is done by

Liquid-liquid extraction
Extractive distillation
Steam distillation
Leaching

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Mass Transfer
Water-ethyl alcohal solution can be concentrated (in respect of alcohal concentration) by __________ distillation.

High pressure
None of these
Atmospheric
Vacuum

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Mass Transfer
The dew point of an unsaturated gas-vapor mixture does not depend upon the __________ of the mixture.

Composition
Total pressure
All of these
Temperature

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