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Mass Transfer

Mass Transfer
The efficiency of a plate column will be maximum, when the flow is ideal __________ the plate.

Neither A nor B
Across
Above
Both A & B

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Mass Transfer
Stage efficiency in a leaching process depends on the

Vapour pressure of the solution
Both A & B
Time of contact between the solid and the solution
Rate of diffusion of the solute through the solid and into the liquid

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Mass Transfer
Which of the following adsorbent is used to decolourise yellow glycerine?

Fuller
Activated carbon
Alumina
Silica gel

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Mass Transfer
In a forced draft cooling tower, water is cooled from 95 to 80°F by exposure to air with a wet bulb temperature of 70°F. In this case, the

Both A & B
Range is 15°F
Approach is 10°F
Neither A nor B

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Mass Transfer
Flooding in a column results due to

Low pressure drop
Low velocity of the liquid
High temperature
High pressure drop

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Mass Transfer
Wetted wall tower experiment determines the

Mass transfer co-efficient
Volumetric co-efficient
None of these
Molal diffusivity

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