Mass Transfer
During constant rate period, the rate of drying decreases with the

Neither A nor B
Decrease in air temperature
Increase in air humidity
Both A & B

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Mass Transfer
In case of absorption with exothermic reaction, for fluids having

Pr = Sc; percentage change in heat and mass transfer flux will be the same for a given change in the degree of turbulence
Pr = Sc ; there won
Both A & B
Pr = Sc = 1; total mass, momentum and thermal diffusivity will be the same

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Mass Transfer
Humid volume is the total volume in m³ of 1 kg of

Gas plus its accompanying vapour at 1 atm. and gas temperature
Vapour laden gas at 1 atm. and gas temperature
Gas plus its accompanying vapour at 1 atm. and room temperature
Vapour laden gas at 1 atm. and room temperature

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