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Mass Transfer

Mass Transfer
Boiling point diagram is not affected by the ambient

Temperature
Humidity
Both B and C
Pressure

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Mass Transfer
The expression, y(1 - x)/x(1 - y) is for

Relative volatility
Murphree efficiency
Absorption factor
Selectivity

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Mass Transfer
In continuous distillation, the internal reflux ratio (Ri) and the external reflux ratio (Re) are related as

Ri = Re/(1 - Re)
Ri = Re
Ri = (1 - Re)/Re
Ri = Re/(1 + Re)

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Mass Transfer
The cooling effect in a cooling tower can be speeded up by

Increasing the air velocity and area of exposed wet surface
Reducing the humidity of the air
Reducing the barometric pressure
All of the listed here

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Mass Transfer
In rectifying section of a continuous distillation column, the

None of these
Vapour is enriched with low boilers
Liquid is stripped of high boilers
Vapour is enriched with high boilers

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Mass Transfer
In a distillation column, with increase in the reflux ratio, the heat removed in the cooler

Increases
Remains unaffected
Decreases
And the heat required in reboiler decreases

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