Chemical Engineering Thermodynamics
"The fugacity of a gas in a mixture is equal to the product of its mole fraction and its fugacity in the pure state at the total pressure of the mixture". This is

None of these
Henry's law
Called Lewis-Randall rule
The statement as per Gibbs-Helmholtz

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Chemical Engineering Thermodynamics
The necessary condition for phase equilibrium in a multiphase system of N components is that the

Sum of the chemical potentials of any given component in all the phases should be the same
None of these
Chemical potentials of all components should be same in a particular phase
Chemical potentials of a given component should be equal in all phases

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Chemical Engineering Thermodynamics
If the heat of solution of an ideal gas in a liquid is negative, then its solubility at a given partial pressure varies with the temperature as

Solubility increases or decreases with temperature depending on the Gibbs free energy change of solution
Solubility increases as temperature decreases
Solubility increases as temperature increases
Solubility is independent of temperature

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