X=2 Y=2 Z=1

1) The Ga-Cd alloy at 7XYK exhibits a regular solution. The activity coefficient - molar fraction relation is given below, answer the questions. HCd=10XYZ(1XCd)2(Joule) a) For XGa=0.25 composition, calculate the activity and activity coefficient values of both Ga and Cd. b) Calculate the mixing free energy, mixing enthalpy and mixing entropy values of the solution (XGa=0.25). c) Calculate the activity, activity coefficient, partial molar free energy, partial molar enthalpy, partial molar entropy values of only Ga for XGa=0.XY d) If temperature was decreased from 7XYK to 500K, would you expect higher or lower activity coefficient value for Ga and Cd? Explain. solution. Explain/compare the bond strengths for the solution. Is it an endothermic or exothermic reaction? Does it require energy