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Mass Transfer

Mass Transfer
Dry bulb temperature of the gas is __________ the wet bulb temperature.

Equal to
More than
None of these
Less than

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Mass Transfer
The wet and 'dry bulb temperature for a vapour-gas mixture are 25°C and 30°C respectively. If the mixture is heated to 45°C at constant pressure, the wet bulb temperature will be __________ °C.

> 25
-25
25
< 25

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Mass Transfer
The apex of an equilateral-triangular coordinate (in ternary liquid system) represents a/an

Ternary mixture
Binary mixture
Insoluble binary system
Pure component

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Mass Transfer
Minimum reflux ratio in a distillation column results in

Minimum number of trays
Maximum condenser size
Optimum number of trays
Minimum reboiler size

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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
Flow rate of gas
Heat gain or loss

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Mass Transfer
Diffusivity in concentrated solutions differs from that in dilute solutions, because of the changes in

Both A & B
Neither A nor B
Degree of ideality of the solution
Viscosity with concentration

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