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+//example 1
+//Balancing the Combustion Equation
+clear
+clc
+Mair=28.97 //Molar mass of air in kg/kmol
+x=8 //no. of moles of CO2 in products
+y=9 //no. of moles of H2O in products
+z=7.5 //no. of moles of O2 in products
+w=75.2 // no. of moles of N2 in products
+NMair=20*4.76*29 //mass of air in kg
+NMc=8*12 //mass of carbon in fuel in kg
+NMh2=2*9 //mass of hydrogen in fuel in kg
+AF=NMair/(NMc+NMh2) //air fuel ratio in kg air/kg fuel
+printf("\n Hence, the air fuel ratio for this combustion process is = %.1f kg air/kg fuel. \n",AF);
+\ No newline at end of file