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Mass Transfer

Mass Transfer
Penetration model (theory) for mass transfer was enunciated by

Kissinevskii
Toor and Marchello
Danckwerts
Higbie

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Mass Transfer
Extraction of pencillin employs a __________ extraction coloumn.

None of these
Centrifugal
Plate
Packed

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Mass Transfer
With increase in temperature, the leaching rate increases due to

Increased diffusivity
Both A & B
Decreased liquid viscosity
Neither A nor B

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Mass Transfer
In case of absorption, both the operating and equilibrium lines will be straight for

Dilute solutions
Dilute solutions and isothermal operation
Isothermal operation
None of these

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Mass Transfer
The humid volume may be increased by increasing the

Humidity at constant temperature
Temperature at constant humidity
Both A & B
Neither A nor B

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Mass Transfer
In gas-liquid contact operation, the number of ideal stages, N = (xa - xb)/(xb - x*b) . This is true when the stripping factor 'S' is

S = ∞
S > 1
S = 1
S < 1

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