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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
1 kg of a saturated aqueous solution of a highly soluble component A at 60°C is cooled to 25°C. The solubility limits of A are (0.6 kgA/kg water) at 60°C and (0.2 kgA/kg water) at 25°C. The amount in kg of the crystals formed is

0.25
0.2
0.175
0.4

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Mass Transfer
The ratio of Murphree plate efficiency to point efficiency is 1 in a __________ flow model.

None of the listed here
Plug
Both plug & perfectly mixed
Perfectly mixed

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Mass Transfer
The critical moisture content in case of drying indicates the __________ rate period.

None of these
Beginning of constant
Beginning of falling
End of falling

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

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

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Mass Transfer
Lewis number, which is important in problems involving simultaneous heat and mass transfer, is the ratio of

None of these
Momentum diffusivity to thermal diffusivity
Thermal diffusivity to mass diffusivity
Mass diffusivity to momentum diffusivity

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