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+//Example 3.10
+clear;
+clc;
+
+//Given
+delHfHCl = -92.3;//heat of formation in kJ of HCl
+delHfH2O = -285.8;//heat of formation in kJ of water
+delHfNaCl = -411.0;//heat of formation in kJ of NaCl
+delHfNaOH = -426.7;//heat of formation in kJ of NaOH
+delH1 = -75.7;//heat of reaction(i)
+delH2 = -40.9;//heat of reaction (ii)
+delH3 = 4.26;//heat of reaction (iii)
+//To determine delH
+delHf1=delH1+delHfHCl;//delH for (i) in kJ
+delHf2=delH2+delHfNaOH;//delH for (ii) in kJ
+delHf3=delH3+delHfNaCl;//delH for (iii) in kJ
+delH=delHf3+delHfH2O-(delHf1+delHf2);//delH in kJ
+mprintf('delH = %f kJ',delH);
+//end \ No newline at end of file