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+//Chapter 4, Example 4.3, Page 94
+clc
+clear
+// Q value of an endothermic and exothermic reaction
+//Exothermic reaction
+Be = 9.012182 //Reactants
+He = 4.002603 //Reactants
+C12 = 12 //Product
+n = 1.008664 //Product
+C2 = 931.5 // C^2 in MeV
+Exo1 = Be+He
+Exo2 = C12+n
+Dif1 = Exo1-Exo2
+Q1 = Dif1*C2
+printf("\n Q of the exothermic reaction = %f MeV",Q1); 
+//Endothermic reaction
+O = 15.994915 //Reactants
+n = 1.008664 //Reactant
+C13 = 13.003354 //Product
+He = 4.002603 //product
+End1 = O+n
+End2 = C13+He
+Dif2 = End1-End2
+Q2 = Dif2*C2
+printf("\n Q of the exothermic reaction = %f MeV",Q2); 
+//Answer may vary due to round off error