Chemical Engineering Thermodynamics
When liquid and vapour phases of one component system are in equilibrium (at a given temperature and pressure), the molar free energy is

More in vapour phase
More in liquid phase
Same in both the phases
Replaced by chemical potential which is more in vapour phase

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Chemical Engineering Thermodynamics
The second law of thermodynamics states that

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

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