Assume that in the below Fig. Q2 we are referring to substitutional solid solutions. Plot how the enthalpy, entropy and the total free energy vary for these two systems as you change the composition by substitutional defects. In which of these two cases, substitution is endothermic or exothermic process? For each system, plot all (enthalpy, entropy, total free energy) in sketch for comparison.

2. Assume that in the below Fig. Q2 we are referring to substitutional solid solutions. Plot how the enthalpy, entropy and the total free energy vary for these two systems as you change the composition by substitutional defects. In which of these two cases, substitution is endothermic or exothermic process? For each system, plot all (enthalpy, entropy, total free energy) in sketch for comparison. Stress Stress ( MPa ) 40 / + - (MPa ) 30 10 20 10 Au Ag Al 2 3% Cu Fig. Q2. Strength variations in Au-Ag system and Al-Cu system with increasing loading levels of Ag in Au and Cu in Al