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+
+clear;
+clc;
+disp('Example 8.1');
+
+//  aim : To determine
+//   the stoichiometric mass of air required to burn 1 kg the fuel 
+
+//  Given values
+C = .72;//  mass fraction of C; [kg/kg]
+H2 = .20;//  mass fraction of H2;, [kg/kg]
+O2 = .08;//  mass fraction of O2, [kg/kg]
+aO2=.232;//  composition of oxygen in air
+
+//  solution
+//  for 1kg of fuel
+mO2  = 8/3*C+8*H2-O2;//  mass of O2, [kg]
+
+//  hence stoichiometric mass of O2 required is
+msO2  = mO2/aO2;// [kg]
+
+mprintf('\n The stoichiometric mass of air required to burn 1 kg the fuel should be =  %f  kg\n',msO2);
+
+//  End