Chemical Engineering Thermodynamics
Solubility of a substance which dissolves with an increase in volume and liberation of heat will be favoured by the

Low pressure and low temperature
High pressure and low temperature
Low pressure and high temperature
High pressure and high temperature

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Chemical Engineering Thermodynamics
The necessary and sufficient condition for equilibrium between two phases is

The temperature of each phase should be same
The chemical potential of each component should be same in the two phases
The pressure should be same in the two phases
The concentration of each component should be same in the two phases

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