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Mass Transfer

Mass Transfer
The Kundsen diffusivity is proportional to (where, T = absolute temperature)

T
T⁴
√T
T²

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Mass Transfer
Surface renewal model of mass transfer was enunciated by

Danckwerts
Toor and Marchello
Stefan
Fick

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Mass Transfer
The vapour pressure exerted by the moisture contained in a wet solid depends upon the

Temperature
Nature of the solid
All of these
Nature of the moisture

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Mass Transfer
Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature.

Equal to
Less than
More than
Either A or B; depends on the solid

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Mass Transfer
Ion exchange process is similar to

Extraction
Leaching
Adsorption
Absorption

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

1
< 1
> 1

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MORE MCQ ON Mass Transfer

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