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Mass Transfer

Mass Transfer
Small dia distillation column can be a

Packed column
Any of these
Sieve tray
Bubble cap

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Mass Transfer
COâ‚‚ can be absorbed by

Cold Ca(OH)â‚‚
Hot cupric oxide
Heated charcoal
Alumina

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Mass Transfer
An alkaline solution is used to reduce the concentration of carbon dioxide in a stream from 10% to 0.1% by absorption with irreversible chemical reaction. The overall number of transfer units based on gas phase is

9.21
0.001
100
4.605

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Mass Transfer
______ extractor uses centrifugal force for separating the two phases.

Schiebel
Treybal
None of the listed here
Podbielniak

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Mass Transfer
Azeotropic distillation is employed to separate

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

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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
Flow rate of the entering gas
None of these

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