Answer the following questions using the phase diagram given for the Ag$-$Cu system.

a$)$ Melting temperatures of silver and copper, respectively

$\backslash$deg C and

$\backslash$deg C $.$

b$)$ Eutectic temperature

$\backslash$deg C $.$ Eutectic composition $\%$

Contains Cu$.$

c$)$ Maximum solubility of Ag in Cu

This value is at room temperature

d$)$ Maximum solubility of Cu in Ag

This value is at room temperature

e$)($Draw the cooling curves for $8$Cu$-92$Ag and $(95$Cu$-5$Ag$)$ alloys.

f$)$ Determine the phases and their quantities present at $400\backslash$deg C and $600\backslash$deg C for the $40$Cu$-60$Ag alloy.

Show their microstructures schematically.

g$)$ Determine the phases and their quantities present at $900\backslash$deg C for the $80$Cu$-20$Ag alloy.

Show their microstructures schematically.