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Mass Transfer

Mass Transfer
CO₂ can be absorbed by

Heated charcoal
Hot cupric oxide
Alumina
Cold Ca(OH)₂

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Mass Transfer
Freundlich equation applies to the adsorption of solute from

Concentrated solutions
None of these
Dilute solutions, over a small concentration range
Gaseous solutions at high pressure

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Mass Transfer
Dry bulb temperature of the gas is __________ the wet bulb temperature.

None of these
Equal to
Less than
More than

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Mass Transfer
If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is

< 1
1
> 1

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Mass Transfer
Minimum reflux ratio in a distillation column results in

Maximum condenser size
Minimum reboiler size
Optimum number of trays
Minimum number of trays

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Mass Transfer
Surface renewal model of mass transfer was enunciated by

Stefan
Fick
Toor and Marchello
Danckwerts

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