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Mass Transfer

Mass Transfer
In a binary distillation column, if the feed contains 40 mole % vapour, the q line will have a slope of

0.6
-1.5
1.5
-0.6

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

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

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Mass Transfer
Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in

All of these
Decreased solute solubility
Large number of trays
Large minimum liquid to gas (L/G) ratio

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Mass Transfer
Percentage saturation is __________ the relative saturation.

None of these
Always greater than
Not related to
Always smaller than

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Mass Transfer
In batch distillation with constant reflux, overhead product composition __________ with time.

May increase on decrease, depends on the system
Does not vary
Decreases
Increases

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Mass Transfer
The relative saturation of an unsaturated mixture of gas and vapor is independent of the

Nature of the vapor
Composition of the mixture
Temperature of the mixture
None of these

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