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Mass Transfer

Mass Transfer
Tea percolation employs

Leaching
None of these
Liquid-liquid extraction
Absorption

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Mass Transfer
Penetration model (theory) for mass transfer was enunciated by

Toor and Marchello
Kissinevskii
Danckwerts
Higbie

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Mass Transfer
In case of __________ distillation, a solvent is added to alter the relative volatility of the mixture to be separated.

Flash
Molecular
Azeotropic
Extractive

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Mass Transfer
The binary diffusivity in gases and liquids vary respectively as

√T and T3/2
T and T3/2
T3/2 and T
T3/2 and √T

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Mass Transfer
In the absorption of ammonia in water, the main resistance to absorption is by the __________ phase.

Liquid
Gas
Neither A nor B
Both A & B

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Mass Transfer
A natural draft cooling tower is filled with wooden grids, which covers about __________ percent of the tower height.

30-40
70-80
44119
90-100

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