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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
To remove all the moisture from a wet solid it requires exposure to __________ air.

None of these
High temperature
Highly humid
Perfectly dry

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Mass Transfer
Absorption (liquid-gas system) with evolution of heat as compared to isothermal absorption results in

All of these
Decreased solute solubility
Large minimum liquid to gas (L/G) ratio
Large number of trays

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Mass Transfer
Sand is dried in foundaries in a___drier.

Rotary
Fluidisedbed
Vacuum
Spray

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Mass Transfer
Corresponding to Nusselt number in heat transfer, the dimensionless group in mass transfer is the __________ number.

Stanton
Sherwood
Peclet
Schmidt

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Mass Transfer
Leaching of coffee from coffee beans is done by

Hot water
Hexane
Dilute H₂SO₄ (hot)
Lime water

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