A 19th-century piston engine ran on steam. The steam supply is at 5 bar and 350oC. The steam discharges to the atmosphere at 1 bar and saturation temperature. The steam enters and leaves the cylinders through 1.5 cm diameter pipes. Elevation change and heat transfer to the surroundings are to be neglected. If 0.50 kg/s of steam is passed through the engine, how much shaft work is done?