(Psychrometric chart use is not allowed)

3. The hydrocarbon fuel C6H14 (Enthalpy of formation =-174,900 kJ/kmol) is burned with 60% excess air in a combustor to complete combustion at a constant pressure of 105kPa. The reactants (fuel and air) enter the combustor at standard reference state and the product gasses leave the combustor at 1300 K. Develop the balanced chemical reaction equation. Calculate the

a) Air-Fuel ratio for the reaction

b) Thermal energy available from the reaction (kJ/kg of fuel)

Note: Every numerical calculation must include the appropriate equation and numerical substitution of the parameters that go into the equation. All conversion processes must be explicitly shown.