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Mass Transfer

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

10-5 to 10-6
> 1
0.1
0.01

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Mass Transfer
Stefan's law describes the mass transfer by

Diffusion
Bulk flow
Neither A nor B
Both A & B

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Mass Transfer
For the same feed, feed quality and separation (in a distillation column), with the increase of total pressure, the number of ideal plates will

Data insufficient, can't be predicted
Decrease
Increase
Remain same

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Mass Transfer
A binary mixture of benzene and cyclohexane is separated by

Extractive distillation
Solvent extraction
Ordinary distillation
Flash vaporisation

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Mass Transfer
For contacting a highly soluble gas with a liquid

Bubble the gas through liquid
Spray the liquid on gas stream
None of the listed here
Both of the options given here

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Mass Transfer
In stripping section of continuous distillation column, the

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

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