A gas-turbine engine burns liquid octane with 300% “theoretical” air (i.e. the octane to air ratio is 1:3) in a steady-flow constant-pressure process. The air and octane both enter the engine at 25° C. The exhaust gases leave the engine at 725° C. The overall engine is well insulated. Determine the following:

A. The power output for a fuel flow rate of 39.5 kg/hr

B. The composition of the exhaust products on a volumetric basis (dry)

C. The dew-point temperature of the exhaust gases