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Mass Transfer

Mass Transfer
Boiling point diagram is not affected by the ambient

Humidity
Temperature
Both B and C
Pressure

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Mass Transfer
Fractional solvent extraction

Employs two solvents
None of the listed here
Results in low interfacial tension
Employs only one solvent

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Mass Transfer
During dehumidification of unsaturated air wet bulb temperature & partial pressure of vapor are not constant. However, during evaporative cooling process with recirculated water supply, the __________ remains constant.

Relative humidity
Wet bulb temperature
None of these
Partial pressure of water vapor

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

Temperature and pressure
None of these
Nature of the constituents
Concentration

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Mass Transfer
Desulphurisation of petrol is done in a

Packed extraction column
Plate type extraction column
Bollman extractor
Rotating disc extractor

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Mass Transfer
During the constant rate period of drying of a solid,

Increasing the air temperature decreases the drying rate
Increased air humidity decreases the rate of drying
None of these
Surface evaporation of unbound moisture occurs

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