1. Consider the CuAg phase diagram. riyure 3.0 ine copper-suiver pnase alagram. (Adapted from Metals Handbook: Metallography, Structures and Phase Diagrams, Vol.8,8th edition, ASM Handbook Committee, T. Lyman, Editor, American Society for Metals, 1973, p. 253.) When T=1000F(550C) and the average composition of Ag is 71.9 weight percent, fill in the answers on the table on the next page. Show how you determined your answers by marking the figure above. \begin{tabular}{|l|l|} \hline (a) What is the melting temperature? (1 point) & Answer (a): \\ \hline \multirow{2}{*}{Whatisthecomposition(b)ofAginthealphaphase?(c)inthebetaphase?(2pointseach)} & Answer (b): \\ \cline { 2 - 3 } & Answer (c): \\ \hline Usingtheleverrule,calculate(d)thefractionofatoms(intermsofweight%isfine)inthealphaphaseand(e)thefractionofatomsinthebetaphase.(4pointseach) & Answer (d): \\ \cline { 2 - 3 } (f)Istheenthalpyofmixingpositive,negativeorzeroforthissystem?(2point) & Answer (e): \\ \hline (g)Whatistheentropyofmixinginthealphaphaseand(h):betaphase?(4pointseach) & Answer (g): \\ \cline { 2 - 3 } & Answer (h): \\ \hline (i)Whatisthetotalentropyofmixinginthesystem?(1points) & Answer (i): \\ \hline \end{tabular}