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+//Calculate the value of change in Internal energy and change in Enthalpy for the combution of Benzoic acid 
+
+//Example 4.3
+
+clc;
+
+clear;
+
+C=5267.8;  //Effective heat capcity of bomb calorimeter plus water im J K^-1
+
+T1=293.32;  //Initial temperature in K
+
+T2=295.37;  //Final temperature in K
+
+delT=T2-T1;  //Change in teperature in K
+
+M=122.12;  //Molar mass of Benzoic acid in g mol^-1
+
+m=0.4089;  //Mass of sample of Benzoic acid in g
+
+delU=-(C*delT*M)/(m*1000);  //Change in Enternal enegy in kJ mol^-1
+
+printf("Change in Enternal energy = %.0f kJ mol^-1",delU);(The answer vary due to round off error)
+
+R=8.314;  //Gas constant in J K^-1 mol^-1
+
+T=T1; //Temperature in K
+
+n1=7.5;  //Number of moles of gas for reactants
+
+n2=7;  //Number of mole of gas for product
+
+deln=n2-n1;  //Change of moles gas for reaction
+
+delH=delU+((R*T*deln)/1000); //Change in Enthalpy in kJ mol^-1
+
+printf("\nChange in Enthalpy = %.0f kJ mol^-1",delH);