(Solved): Consider the phase diagram of the gold-lead (Au-Pb) system.a) Indicate the phase(s) present in regio ...

Consider the phase diagram of the gold-lead (Au-Pb) system.

a) Indicate the phase(s) present in regions A, B, C, D, E, F and G.

b) Indicate the number of degrees of freedom of a system located in regions A, D and E.

c) Determine the minimum formulas of the compounds y and ? formed, knowing that the mass molar of gold is 197.0 g mol-1 and that of lead is 207.2 mol-1 .

d) Determine the melting temperature of the y phase and the peritectic composition present in the transition e) Estimate the melting temperature and composition of the eutectic mixture.