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Mass Transfer

Mass Transfer
Schmidt number is given by

Μ/ρDAB
Re/Pe
Re.Pe
Sh x Pe

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Mass Transfer
Ordinary diffusion process is also called __________ diffusion.

Thermal
Concentration
Pressure
Forced

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Mass Transfer
Pick out the system with maximum boiling azeotrope at 1 atm.

None of these
Ethyl alcohol-water
Acetone chloroform
Benzene-ethyl alcohol

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Mass Transfer
Which of the following liquid-vapor contacting devices provides maximum contact surface area for a particular duty?

Wetted wall column
Sieve plate column
Randomly packed column
Bubble cap column

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Mass Transfer
Critical humidity of a solid salt means the humidity

Below which it will always stay dry
Both A and B
Above Which it will always become dry and below which it will always stay damp
Above which it will always become damp

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Mass Transfer
In case of constant underflow extraction operation, the __________ at all solute concentration.

Both A & B
Neither A nor B
Ratio of the insoluble to solution is constant
Solids are drained to the same extent

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