Liquid propane (C₃ H ₈ ) enters a combustion chamber at 25 ∘ C at a rate of 0.05 kg/min where it is mixed and burned with 50 percent excess air that enters the combustion chamber at 7 ∘ C. An analysis of the combustion gases reveals that all the hydrogen in the fuel burns to H ₂ O but only 90 percent of the carbon burns to CO₂ , with the remaining 10 percent forming CO. If the exit temperature of the combustion gases is 1500 K, determine: the balanced chemical equation for the actual process.