An air–fuel mixture enters a constant area combustion chamber ata velocity of 100 m/s a pressure of 70 kPa and a temperature of150°C. Assuming that the fuel–air ratio is 0.04, the heating valueof the fuel is 30 MJ/kg, and the mixture has the properties of air,calculate the Mach number in the gas flow after combustion iscompleted and the change of stagnation temperature and stagnationpressure across the combustion chamber. Neglect the effects ofviscosity and assume that the properties of the gas in thecombustion chamber are the same as those of air.
