1. A piston/cylinder contains pure oxygen at 500 K, 600 kPa. The piston is moved to a volume such that the final temperature is 700 K in a polytropic process with exponent n = 1.25. Use ideal gas approximation and constant heat capacity to find the final pressure, the specific work, and the heat transfer.
2. Do Problem 6.103 and assume that the process is polytropic with n = 1.15.
Problem 6.103
A cylinder/piston contains 1 kg methane gas at 100 kPa, 300 K. The gas is compressed reversibly to a pressure of 800 kPa. Calculate the work required if the process is adiabatic.