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Mass Transfer

Mass Transfer
Extraction of pencillin employs a __________ extraction coloumn.

None of these
Centrifugal
Packed
Plate

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Mass Transfer
For the same system, if the same liquid used in an absorber is decreased, the tower height will

Remain unaffected
Decrease
Increase
Decrease or increase ; depends on the type of liquid

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Mass Transfer
The partial pressure distribution of an ideal gas diffusing through another stagnant ideal gas at steady state follows a/an __________ law.

Linear
Parabolic
Exponential
Cubic

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

Parallel
Both A & B
Straight
Neither A nor B

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Mass Transfer
The rate of mass transfer is not dependent upon the

Degree of dispersion of one fluid in the other
None of these
Both A & B
Interfacial surface exposed between the phases

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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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