x=2 y=2 z=1

1) The Ti-Mn binary system at 1XYZK exhibits a regular solution. For XMn=0.24 composition, activity value was obtained as aMn=0.48. Using the given information answer the questions: a) For XMn=0.3 composition calculate the activity and activity coefficient values of both titanium and manganese. b) Calculate the mixing free energy, mixing enthalpy and mixing entropy values of the solution (XMn=0.3X) c) If temperature was decreased from 1XYZK to 850K, would you expect higher, lower or the same activity coefficient value for titanium and manganese? Explain. d) Describe the -function (interatomic bond parameter). Calculate/find the -function for the solution. Explain/compare the bond strengths for the solution. Is it an endothermic or exothermic reaction? Does it require energy? PLOT a representative binary phase diagram. 1) The Ti-Mn binary system at 1XYZK exhibits a regular solution. For XMn=0.24 composition, activity value was obtained as aMn=0.48. Using the given information answer the questions: a) For XMn=0.3 composition calculate the activity and activity coefficient values of both titanium and manganese. b) Calculate the mixing free energy, mixing enthalpy and mixing entropy values of the solution (XMn=0.3X) c) If temperature was decreased from 1XYZK to 850K, would you expect higher, lower or the same activity coefficient value for titanium and manganese? Explain. d) Describe the -function (interatomic bond parameter). Calculate/find the -function for the solution. Explain/compare the bond strengths for the solution. Is it an endothermic or exothermic reaction? Does it require energy? PLOT a representative binary phase diagram