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+//Calculate the Entropies change for the System ,Surrouding and Universe for the reaction N2(g)+3H2(g)=2NH3(g)
+
+//Example 5.9
+
+clc;
+
+clear;
+
+Sbar1=192.5;  //Standard Molar Entropy of NH3 in J K^-1 mol^-1
+
+Sbar2=191.5;  //Standard Molar Entropy of N2 in J K^-1 mol^-1
+
+Sbar3=130.6;  //Standard Molar Entropy of H2 in J K^-1 mol^-1
+
+delSsys=(2*Sbar1)-((Sbar2)+(3*Sbar3));  // Entropy change for the system in J K^_1 mol^-1
+
+printf("Entropy change of the System = %.0f J K^-1 mol^-1",delSsys);
+
+T=298;  //Temperature in K
+
+delHsys=-92.6;  //Enthalpy change of the system in kJ mol^-1
+
+delHsur=-delHsys;  //Enthalpy change for the surroundind  in kJ mol^-1
+
+delSsur=(delHsur*1000)/T;  //Entropy change for the surrouding in J K^_1 mol^-1
+
+printf("\nEntropy chnage for the Surrouding = %.0f J K^-1 mol^-1",delSsur);
+
+delSsur1=311;  //Entropy change for the surrouding in J K^_1 mol^-1(delSsur1=delSsur)
+
+delSuniv=delSsys+delSsur1;  //Entropy change for the universe in J K^_1 mol^-1
+
+printf("\nEntropy chnage for the Universe = %.0f J K^-1 mol^-1",delSuniv);