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Mass Transfer

Mass Transfer
Humid volume, at a given temperature is a/an __________ function of humidity.

Logarithmic
Exponential
Linear
Inverse

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Mass Transfer
A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.

44119
70-80
30-40
90-100

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Mass Transfer
At a fixed pressure, the humidity depends upon the partial pressure of vapor in the mixture. Humidity of a vapour free gas is __________ percent.

Between 0 and 100
100
50

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Mass Transfer
Molality is defined as the number of gm moles of solute per __________ of solvent.

Gm
m³
Kg
Litre

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Mass Transfer
For a distillation column operating at minimum reflux, the

None of these
Number of plates required will be maximum
Concentration of liquid and vapour leaving a plate will be same
Reflux ratio will be maximum

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Mass Transfer
With increase in gas rate, the number of transfer units, NtoG, for a fixed degree of absorption by a fixed amount of solvent

Decreases
Remains unaffected
Decreases linearly
Increases

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