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Mass Transfer

Mass Transfer
Liquid diffusivity is of the order of __________ cm² /second.

0.1
10-5 to 10-6
> 1
0.01

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Mass Transfer
Agitator is provided in a crystalliser for

Avoiding deposition on cooler surfaces
Formation of nuclei
All of these
Crystal growth

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Mass Transfer
In stripping section of continuous distillation column, the

Vapour is stripped of low boiler
Liquid is stripped of high boiler
Liquid is enriched with high boiler
None of these

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Mass Transfer
At a fixed pressure, the humidity depends upon the partial pressure of vapor in the mixture. Humidity of a vapour free gas is __________ percent.

100
Between 0 and 100
50

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Mass Transfer
Surface renewal model of mass transfer was enunciated by

Stefan
Fick
Danckwerts
Toor and Marchello

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Mass Transfer
Raoult's law is applicable to the

Ideal solutions
Real solutions
Mixture of water and alcohol
Non-ideal gases

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