Can you solve it in a detailed and explanatory way? I have an exam tomorrow.

Using the molar Gibbs free energy of liquid and solid $($ and $)$ solutions, $G_M$ vs $x$

for binary system given to you.

a$)$ Identify the phase fields and equilibrium compositions of these phases on the figures

$($do not forget$).$ Explain briefly how you choose the stable phases $($common tangents etc.$)$

on one of $G_M$ vs $x_2$ graphics.

b$)$ Draw the phase diagram completely $($indicate stable phase fields$).$

c$)$ Draw schematically activity of $a_2$ and $a_1$ vs $x_2$ at $T$ : $2000K($S$.$Number:$0-1),1600$K $(2-$

$,1300K(4-5),1225K(6-7),1000K(8-9-10)$

$($b$)$

$($c$)$

$T(K)$

$($e$)$