The mixture is not stable and forms two liquid phases. One of the phases as a composition of 5% component 1, while other phase has a composition of 65% of component 1.

Consider the figure that provides the molar Gibbs free energy of mixing as a function of composition for a binary mixture.



If the overall composition of the mixture is 30% of component 1, is the mixture stable? If not, what are estimates of the compositions of the liquid phases that are in equilibrium?


Correct. Drawing the tangent line provides this as the best estimate.

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