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Mass Transfer

Mass Transfer
Degree of freedom for leaching and solvent extraction process is

1
2
3

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Mass Transfer
If G = insoluble gas in gas stream and L = non-volatile solvent in liquid stream, then the slope of the operating line for the absorber is

L/G
Always < 1
None of these
G/L

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Mass Transfer
Total reflux in a distillation operation requires minimum

Number of plates
Reboiler load
All of these
Condenser load

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Mass Transfer
Sand is dried in foundaries in a___drier.

Rotary
Vacuum
Fluidisedbed
Spray

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Mass Transfer
The value of Lewis number (Le = Sc/Pr) for air-water vapour system is around

0.24
3.97
600
1

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

Extractive distillation
Ordinary distillation
Flash vaporisation
Solvent extraction

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