III. $09$

The following temperature and concentration dependence of $G^E$ can be used for CaO$-$SrO

solid solution:

$G^E=x_{\text{C}\text{a}\text{O}}{x}_{\text{S}\text{r}\text{O}}[(23000-3.T)+1185.(x_{\text{C}\text{a}\text{O}}-x_{\text{S}\text{r}\text{O}})](\frac{J}{m}ol)$

Derive the relations for $H^M$ md $S_m^E$ dependences on the solution composition. Calculate

the values integral mixing and excess quantities $($enthalpy$,$ entropy and Gibbs energy$)$ for

$1450K$ and solution compositio $x_{\text{C}\text{a}\text{O}}=0\mathrm{.}85,$ as well as activity and activity coefficient values

for both components.$|$