9. Air (PG model) enters an insulated, steady device with no external work interactions through an inlet of area 227 cm at 550 kPa, 27 deg-C with a velocity of 7.3 m/s. At the exit the pressure is 100 kPa. Assuming no friction (no entropy generation) in the device, determine the exit area. (hint: no heat or external work transfer, you should know how to simplify mass, energy, and entropy equation to find the exit state). Hide Details cm Enter answer as a decimal number (3.14, 5.0, -2.78, 5, for example)