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Mass Transfer

Mass Transfer
Rate of leaching increases with increasing

Size of the solid
Viscosity of solvent
Pressure
Temperature

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Mass Transfer
Binary distillation involves the mass transfer by __________ at the gas-liquid interface.

Either A or B
Unidirectional diffusion from gas to liquid phase
Unidirectional diffusion from liquid to gas phase
A counter diffusion at an almost equal molar rate

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Mass Transfer
__________ is used as an 'entrainer' for the separation of acetic acid-water mixture by distillation.

Benzol
Furfural
Hexane
Butyl acetate

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Mass Transfer
The cooling effect in a cooling tower can be speeded up by

All of the listed here
Reducing the humidity of the air
Reducing the barometric pressure
Increasing the air velocity and area of exposed wet surface

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Mass Transfer
For a single component absorber, the operating line is straight only when plotted in term of __________ units.

None of these
Mole ratio
Partial pressure
Mole fraction

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Mass Transfer
Moisture contained by a substance in excess of the equilibrium moisture is called the __________ moisture.

Unbound
Bound
Critical
Free

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