Using the phase diagram of Cs-K system, LAST DIGIT of student number: Zero (0) digit will be taken as 1.

a) Draw schematically Gmix vs. XPt at the temperature (100/last digit) for liquid and solid solutions. Do not forget to show the stable phases, equilibrium composition of these phases and comment on tangents. Ag and Pt with the same crystal structure form solid solution () and liquid solution.

b) Draw schematically activity of component of Cs and K at the temperature (100/last digit).

c) What can you say about bonding energy of Cs-K as compared to Cs-Cs and K-K by looking at the phase diagram? Suppose you are designing Cs-Cl alloy. What is the effect of the bonding energy on the alloy melting point?