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Mass Transfer

Mass Transfer
Langmuir equation is associated with

Multicomponent absorption
Adsorption
Leaching
Steam distillation

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Mass Transfer
The individual mass transfer co-efficients (moles/m² . s) for absorption of a solute from a gas mixture into a liquid solvent are, KL = 4.5 and KG = 1.5. The slope of the equilibrium line is 3. Which of the following resistance (s) is (are) controlling ?

Gas side
Both liquid and gas side
Interfacial
Liquid side

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Mass Transfer
Which of the following parameters remains constant during chemical dehumidifica-tion?

Wet bulb temperature
Dry bulb temperature
None of these
Partial pressure of vapour

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Mass Transfer
Desirable value of absorption factor in an absorber is

< 1
0.5
1
> 1

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Mass Transfer
In the layout plan for a vacuum distillation unit, operating at 60 mm Hg, supported by a barometric condenser, the appropriate place for the location of vacuum drum for collecting the distillate will be

5 metres above ground
10 metres above ground
2 metres above the ground
At ground level

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Mass Transfer
Mass transfer rate between two fluid phases does not necessarily depend on the __________ of the two phases.

Chemical properties
Interfacial area
Degree of turbulence
Physical properties

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