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+//Example 3.16
+clear;
+clc;
+
+//Given
+DHOH=463;//bond energy of O-H bond in kJ
+DHCO=351;//bond energy of C-O bond in kJ
+DHCC=348;//bond energy of C-C bond in kJ
+DHCH=413;//bond energy of C-H bond in kJ
+DHOO=249.2;//half of the bond energy in oxygen molecule in kJ
+DHHH=217.97;//half of the bond energy in hydrogen molecule in kJ
+DHC=716.68;//energy required to obtain free carbon atom from graphite in kJ
+
+//To determine enthalpy of formation of ethyl alcohol
+BE=(5*DHCH)+DHCC+DHCO+DHOH;//total bond enthalpy in kJ
+EA=(6*DHHH)+(2*DHC)+DHOO;//enthalpy of atomization in kJ
+delHf=EA-BE;//enthalpy of formation in kJ
+mprintf('Enthalpy change = %f kJ',delHf);
+//end \ No newline at end of file