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Mass Transfer

Mass Transfer
Ordinary diffusion process is also called __________ diffusion.

Thermal
Pressure
Forced
Concentration

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Mass Transfer
Diffusivity in concentrated solutions differs from that in dilute solutions, because of the changes in

Both A & B
Neither A nor B
Viscosity with concentration
Degree of ideality of the solution

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Mass Transfer
In triangular co-ordinates, the ternery composition point falls __________ of the triangle.

On the sides
In the corners
None of these
Inside

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Mass Transfer
At __________ reflux, theoretical number of plates in a distillation coloumn is calculated using Fenske-Underwood equation.

Maximum permissible
Operating
Minimum
Total

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Mass Transfer
Diffusion co-efficient generally depends upon the temperature, pressure & the nature of the components of the system. Its dimension is not the same as that of the

Mass transfer co-efficient
Thermal diffusivity
Volumetric diffusivity
Kinematic viscosity

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Mass Transfer
For a fixed number of ideal stages in a distillation column, as the reflux ratio is increased, the difference in composition between the top and bottom product streams

Increases
Passes through a maximum
Remains unaffected
Decreases

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