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Mass Transfer

Mass Transfer
Selectivity of the solvent used in solvent extraction should be

< 1
1
> 1

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Mass Transfer
In case of an unsaturated mixture of gas and vapor, the percentage saturation is __________ its relative saturation.

Either A or B, depends on the mixture composition
Lower than
Equal to
Higher than

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Mass Transfer
The process employing desorption of the absorbed solute by a solvent is called

Sublimation
Reverse osmosis
Osmosis
Elution

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Mass Transfer
Wetted wall tower experiment determines the

None of these
Volumetric co-efficient
Molal diffusivity
Mass transfer co-efficient

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Mass Transfer
According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity)

D0.5
1/D
D2
D

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Mass Transfer
With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)

Remains unaffected
Increases Linearly
Increases
Decreases

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