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Mass Transfer

Mass Transfer
For turbulent mass transfer in pipes, the Sherwood number depends on the Reynolds number as

Re0.83
Re0.53
Re
Re0.33

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Mass Transfer
Surface renewal model of mass transfer was enunciated by

Fick
Danckwerts
Toor and Marchello
Stefan

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Mass Transfer
Stefan's law describes the mass transfer by

Both A & B
Diffusion
Bulk flow
Neither A nor B

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Mass Transfer
What is the degree of freedom of an absorption process in which only one component is transferred between phases?

1
2
4
3

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Mass Transfer
The relative humidity of air decreases in-spite of an increase in the absolute humidity, when the

Temperature rises
Pressure falls
Temperature falls
Pressure rises

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Mass Transfer
Which of the following is not fixed by the process requirements, in the design of absorbers?

Terminal concentrations of gas stream
Composition of the entering liquid
None of these
Flow rate of the entering gas

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