A cylinder fitted with a frictionless piston contains 500L of air at 110 kPa, 25 C. The air is compressed in a reversible polytropic process to a final pressure of 800 kPA, at which point the temperature is 140 C. Assuming that heat transfer is with the ambient at 25 C determine: The polytropic N the final volume the work done on the air and heat transfer for the process the net change in entropy for the process.