Determine what is the temperature of the hot combustion gas thatis produced in the engine of a butanol (C4H9OH)-burning bus thatuses ambient air for the combustion. Tip: write the balancedstoichiometric equation for the combustion of butanol assuming airis composed of 80% N2 and 20% O2 by volume, and derive the energybalance of the combustion. Atomic weights: C-12, H-1, O-16, N-14.For butanol: cp = 2 kJ/kg/°C; cv = 1.75 kJ/kg/°C; heat released bycombustion, or ΔH = 60 MJ/kg.
