(Solved): In the following PbSn binary phase diagram: (a) Determine the weight fraction of proeutectic , ...

In the following $\mathrm{Pb}?\mathrm{Sn}$ binary phase diagram: (a) Determine the weight fraction of proeutectic $?$, eutectic $?$ and the eutectic $?$ at the temperature just below the eutectic temperature if the composition of the alloy is $40\mathrm{wt}$ Composition (at\% Sn) $\%\mathrm{Sn}$ (b) Determine the weight percent of $\mathrm{Sn}$ and $\mathrm{Pb}$ in $?$ and $?$, when the temperature dro $100^{?}\mathrm{C}$. (c)Determine the solubility of $\mathrm{Sn}$ in solid $\mathrm{Pb}$ at $100^{?}\mathrm{C}$. (d) Determine the maximum solubility of $\mathrm{Pb}$ in solid $\mathrm{Sn}$.