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Mass Transfer

Mass Transfer
An azeotropic mixture is a __________ mixture.

Ternary
None of these
Binary
Constant boiling point

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Mass Transfer
According to the film theory of mass transfer, the mass transfer co-efficient is proportional to (where, D = molecular diffusivity)

D2
1/D
D
D0.5

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Mass Transfer
Separation of __________ employs gaseous diffusion process.

N₂ and O₂ from air
SO₂ and air
Isotopes of helium
Isotopes of uranium

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Mass Transfer
Separation of two or more components of a liquid solution can not be achieved by

Liquid extraction
Absorption
Evaporation
Fractional crystallisation

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Mass Transfer
Bound moisture is that liquid which exerts an equilibrium vapor pressure __________ that of the pure liquid at the given temperature.

Less than
Either A or B; depends on the solid
Equal to
More than

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Mass Transfer
For __________ drying, the effects of velocity, temperature and humidity of the gas and the thickness of the solid are the same.

Neither A nor B
Unsaturated surface
Constant rate
Both A & B

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