Chemical Engineering Thermodynamics
Free energy change of mixing two liquid substances is a function of the

Temperature only
Concentration of the constituents only
All of these
Quantities of the constituents only

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Chemical Engineering Thermodynamics
Claussius-Clayperon equation gives accurate result, when the

Vapour obeys the ideal gas law and the latent heat of vaporisation is constant
Vapour pressure is relatively low and the temperature does not vary over wide limits
All of these
Volume in the liquid state is negligible compared with that in the vapour state

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

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Chemical Engineering Thermodynamics
The second law of thermodynamics states that

The energy change of a system undergoing any reversible process is zero
None of these
It is not possible to transfer heat from a lower temperature to a higher temperature
The total energy of system and surrounding remains the same

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