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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
When both the fluids flow concurrently in an absorber, the slope of the operating line is

-1
- ve
+ ve
1

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Mass Transfer
Schmidt number is given by

Re/Pe
Sh x Pe
Re.Pe
Μ/ρDAB

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Mass Transfer
At constant pressure, with increase of temperature, the dew point will

Remain unchanged
Decrease
Increase
Increase/decrease ; depends on the temperature

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Mass Transfer
According to the Fenske equation, what will be the minimum number of plates required in a distillation column to separate an equimolar binary mixture of components A and B into an overhead fraction containing 99 mol% A and a bottom fraction containing 98 mol% B? Assume that relative volatility (αAB = 2) does not change appreciably in the coloumn.

10
6
8
12

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Mass Transfer
The reciprocal of stripping factor is termed as

Selectivity index
Relative volatility
Absorption factor
Murphree efficiency

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