Atechnician is studying the power stroke of a four-stroke engine and determines the following: as the piston is forced down, the mixture of combustion products and air undergoes an adiabatic expansion. the engine is running at 3,200 cycles/min. the gauge pressure immediately before the expansion is 27.0 atm. the volumes of the mixture immediately before and after the expansion are 50.0 cm3 and 400 cm3, respectively (figure below). the time interval for the expansion is one-fourth the period of the cycle. the mixture behaves like an ideal diatomic gas with a specific heat ratio of 1.40. determine the average power (in kw) generated during the power stroke.