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Mass Transfer

Mass Transfer
_______ number indicates the ratio of the rates of the heat and mass transfer incase of a cooling tower.

Stanton
Peclet
Sherwood
Lewis

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Mass Transfer
Reboiler is considered as one theoretical plate, because

Reboiler itself contains one plate
Vapour is recycled to the column
None of these
Of the assumption that vapour and liquid leaving the reboiler are in equilibrium

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Mass Transfer
Which of the following quantities need not be fixed before starting the design of a co-current absorber?

None of the listed here
Flow rate of entering liquid
Heat gain or loss
Flow rate of gas

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Mass Transfer
The recovery of pencillin from the acidified fermentation broth is done by

Evaporation
Liquid extraction
Absorption
Distillation

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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
For a binary mixture with low relative volatility, continuous rectification to get pure products will require

Small cross-section column
High reflux ratio
Low reflux ratio
Less number of trays

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