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Mass Transfer

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

3
2
1

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Mass Transfer
The rough value of diffusion co-efficient of water vapor into air at 25°C may be about __________ cm²/sec.

0.0025
0.25
2.5
1.25

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Mass Transfer
In case of __________ distillation, a solvent is added to alter the relative volatility of the mixture to be separated.

Flash
Molecular
Extractive
Azeotropic

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Mass Transfer
If the overall efficiency and Murphree plate efficiency are equal, then both the equilibrium and operating lines are

Straight
Neither A nor B
Both A & B
Parallel

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Mass Transfer
Boiling point diagram is not affected by the ambient

Pressure
Humidity
Temperature
Both B and C

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Mass Transfer
Calculation of mass transfer co-efficient is mostly/normally done using __________ theory.

Penetration
Surface renewal
None of the listed here
Film

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