Mass Transfer
Large scale usage of flash distillation is practised in

Soap manufacturing
Polymerisation industry
Petroleum refinning
Ammonia synthesis plant

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Mass Transfer
Molecular diffusion is caused by the

Thermal energy of the molecules
Activation energy of the molecules
Transfer of molecules from low concentration to high concentration region
Potential energy of the molecules

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Mass Transfer
Henry's law states that the

Vapour pressure is equal to the product of the mole fraction and total pressure
Partial pressure of a component over a solution is proportional to the mole fraction in the vapour
Partial pressure is equal to the product of the mole fraction and total pressure
Partial pressure of a component over a solution is proportional to its mole fraction in the liquid

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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,

All of these
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
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

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