We affer profes DECKING ENCING LETADWEStallation services INSTALL ITH Dwes.com) See an associate to get started. 3 3 . 4 5 .. During the power stroke in a four-stroke automobile engine, the piston is...

Extracted text: We affer profes DECKING ENCING LETADWEStallation services INSTALL ITH Dwes.com) See an associate to get started. 3 3 . 4 5 .. During the power stroke in a four-stroke automobile engine, the piston is forced down as the mixture of combustion products and air undergoes an adiabatic expansion. Assume: (1) the engine is running at 3,000 cycles/min; (2) the gauge pressure immediately before the expansion is 18.75 atm (3) the volumes of the mixtu re immediately before and after the expansion are 40.0 cm and 320 cm', respectively (4) the time interval for the expansion is one-fourth that of the total cycle (5) the mixture behaves like an ideal gas with specific heat ratio 1.40. Find the average power generated during the power stroke.