Mass Transfer
The rate of mass transfer is not dependent upon the

Degree of dispersion of one fluid in the other
Both A & B
Interfacial surface exposed between the phases
None of these

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Mass Transfer
The McCabe Δ L law states that the

Linear crystal growth rate does not depend on the crystal size
Linear crystal growth rate depends on the degree of supersaturation
Linear crystal growth rate depends on the crystal size
Molar heats of vaporisation of components are nearly equal

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Mass Transfer
Pick out the wrong statement pertaining to the rotary dryer.

Rotary dryer is suitable for drying sticky material
Recommended peripherial speed of a rotary drier is in the range of 10 to 30 metres/minute
Flights (located in the inside shell of rotary dryer) lift the material being dried and shower it down through the current of hot air/gases. It extends from the wall to a distance which is about 8-12%
Hold up of a rotary drier is defined as the fraction of the dryer volume occupied by the solid at any instant. The best performance for rotary drier is obtained, when the hold up is in the range of 0.

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