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Mass Transfer

Mass Transfer
In case of gases, the binary diffusivity is proportional to (where, P = pressure)

1/P
P
1/√P
√P

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Mass Transfer
Calculation of mass transfer co-efficient is mostly/normally done using __________ theory.

None of the listed here
Film
Surface renewal
Penetration

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Mass Transfer
In the desorption of highly soluble gas from the liquid, the main resistance will be in the __________ phase.

Neither A nor B
Liquid
Gas
Both A & B

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Mass Transfer
__________ equation applies to diffusivities in liquids.

None of these
Hirschfelder
Wilke and Chang
Gilliland

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Mass Transfer
For the same system, if the same liquid used in an absorber is decreased, the tower height will

Decrease or increase ; depends on the type of liquid
Increase
Remain unaffected
Decrease

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Mass Transfer
Azeotropic distillation is employed to separate

High boiling mixture
Mixture with very high relative volatility
Constant boiling mixture
Heat sensitive materials

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