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+clc
+clear
+//INPUT DATA
+a=40;//percentage of H2 fuel
+b=10;//percentage of CO fuel
+c=3;//percentage of N2 fuel
+d=40;//percentage of CH4 fuel
+e=5;//percentage of CO2 fuel
+f=2;//percentage of O2 fuel
+N=4.76;//Amount of nitrogen require for complete combustion
+
+//CALCULATIONS
+x=a+b+c+d+e;//Total volumetric analysis of fuel
+//H2+ (1/2)O2= H2O 
+X1=a/2;//Moles of oxygen required
+//CO+(1/2)O2=CO2
+X2=b/2;//Moles of oxygen required
+//CH4+2O2=CO2+2H2O
+X3=2*d;//Moles of oxygen required
+X4=-f;//Moles of oxygen required
+Y=X1+X2+X3+X4;//Moles of oxygen required for 100 moles of gas
+Z=Y*N;//Moles of air required for 100 moles of gas
+Z1=Z/x;//Theoritical air required for 1 mole of gas
+
+//OUTPUT
+printf('Theoritical air required for 1 mole of gas %3.1f mole of air',Z1)
+
+
+
+
+