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Mass Transfer

Mass Transfer
When both the fluids flow concurrently in an absorber, the slope of the operating line is

+ ve
1
-1
- ve

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Mass Transfer
Extraction of pencillin employs a __________ extraction coloumn.

Packed
Centrifugal
Plate
None of these

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Mass Transfer
In case of cooling towers, the ratio of the rates of heat and mass transfer is indicated by the __________ number.

None of these
Grashoff
Sherwood
Lewis

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Mass Transfer
With increase in temperature, the rate of leaching increases, because the

Thermal conductivity of solute increases
None of these
Viscosity of solvent decreases
Diffusivity of solute increases

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Mass Transfer
Which of the following is considered equivalent to one theoretical stage in Mc-Cabe Thiele's method?

Partial condenser
Both B and C
Reboiler
Total condenser

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Mass Transfer
(NSh/NRe.NSc) is termed in mass transfer operation as the

Stanton number
Peclet number
Momentum diffusivity
Thermal diffusivity

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