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

Absorption
Fractional crystallisation
Liquid extraction
Evaporation

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Mass Transfer
When acetone is added in a two layer mixture of methyl isobutyl ketone and water at 30°C, the acetone distributes between the two layers and the composition of the layer follows two solubility curves. For this system,

As the acetone concentration increases, the solubility curves approach each other
Both the phases become identical at a particular common point on both the solubility curves called the plait point
The distribution curve which is a plot between x (acetone concentration in one phase) and y (acetone concentration in other phase) is analogous to x-y curve used in distillation and absorption termina
All of these

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Mass Transfer
Dew point of an air-water vapor mixture

All of the listed here
At constant humidity & total pressure is fixed
Decreases with decrease in pressure
Corresponding to any point on the humidity chart is obtained by projecting a line through this point parallel to the temperature axis and to the saturation curve

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