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Mass Transfer

Mass Transfer
Schmidt number is given by

Μ/ρDAB
Re.Pe
Re/Pe
Sh x Pe

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Mass Transfer
In case of liquid-liquid binary diffusion, diffusivity of one constituent into another is not dependent on the

Concentration
Temperature and pressure
None of these
Nature of the constituents

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Mass Transfer
Molecular seives are porous

Silica
Alumina
None of these
Synthetic zeolites crystals/metal alumino-silicates

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Mass Transfer
Molecular diffusivity of a liquid

Decreases with temperature
May increase or decrease with temperature
Increases with temperature
Is independent of temperature

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Mass Transfer
Large scale usage of flash distillation is practised in

Soap manufacturing
Petroleum refinning
Polymerisation industry
Ammonia synthesis plant

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Mass Transfer
If mass diffusivity in a mixture is equal to the thermal diffusivity, then the Lewis number is

1
> 1
< 1

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MORE MCQ ON Mass Transfer

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