The enthalpy of mixing (J/mol) of Au-Pt solid solutions can be approximately giv

Question

The enthalpy of mixing (J/mol) of Au-Pt solid solutions can be approximately given by the
following relation: Since the enthalpy of mixing is positive,
solid solutions of Au and Pt will exhibit phase separation at low temperatures. Compute the
following quantities.
(a) The T above which single-phase solutions of Au and Pt can exist for any composition.
For this solution use the Gibbs energy of mixing relation

, where is the heat of mixing
(b) At what composition of Au and Pt does the free energy of mixing given by the form in
part (a) have its maximum magnitude for any given temperature.

Explanation / Answer

plase give the data. image is not supported

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