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+//Example 5.11
+clear;
+clc;
+
+//Given
+DHoHH=435;//Bond dissociation energy of H-H bond in kJ mol^-1
+DHoClCl=240;//Bond dissociation energy of Cl-Cl bond in kJ mol^-1
+DHoHCl=430;//Bond dissociation energy of H-Cl bond in kJ mol^-1
+SoH2=130.59;//Standard entropy of hydrogen molecule in J K^- mol^-1
+SoCl2=222.95;//Standard entropy of chlorine molecule J K^- mol^-1
+SoHCl=186.68;//Standard entropy of HCl molecule J K^- mol^-1
+T=298;//Temperature in K
+
+//To determine the free energy change
+delHo=DHoHH+DHoClCl-(2*DHoHCl);
+delSo=(SoHCl*2)-SoCl2-SoH2;
+delGo=delHo-(T*delSo*10^(-3));
+mprintf('Free energy change = %f kJ',delGo);
+//end
+\ No newline at end of file