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Mass Transfer

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

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

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

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

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

Ordinary distillation
Extractive distillation
Flash vaporisation
Solvent extraction

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Mass Transfer
Berl saddle made of carbon cannot be used for

Oxidising atmosphere
SO₂
H₂SO₄
Alkalis

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Mass Transfer
Absorption factor, for a fixed degree of absorption from a fixed amount of gas should be

> 1
< 1
≤ 1
1

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Mass Transfer
Critical humidity of a solid salt means the humidity

Both A and B
Below which it will always stay dry
Above which it will always become damp
Above Which it will always become dry and below which it will always stay damp

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