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Mass Transfer

Mass Transfer
During drying operation, it is easier to remove the __________ moisture.

Critical
Unbound
Bound
Equilibrium

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Mass Transfer
A mixture of 10% C₆H₆ vapour in air at 25°C and 750 mm Hg has a dew point of 20°C. Its dew point at 30°C and 700 mm Hg will be around __________ °C.

20
21.7
27.3
18.7

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Mass Transfer
Penetration model (theory) for mass transfer was enunciated by

Kissinevskii
Danckwerts
Toor and Marchello
Higbie

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Mass Transfer
In case of liquid-liquid binary diffusion, diffusivity of one constituent into another is not dependent on the

Nature of the constituents
Temperature and pressure
Concentration
None of these

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Mass Transfer
Wet bulb and dry bulb temperatures becomes identical at __________ percent saturation curve.

78
100
50
None of these

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Mass Transfer
The adiabatic saturation curve for a vapour-gas mixture is

Slightly concave upward
Straight line
None of these
Slightly concave downward

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