A well-insulated (adiabatic) piston-cylinder assembly contains 2 moles of carbon monoxide gas. The gas has an initial state of 200 C and 4 bar, and the piston is held in place with a heavy block. The block is removed and the gas is allowed to expand freely against the atmosphere, which has a pressure of 1 bar. The expansion continues until the volume of the gas is double that of its initial state where it is stopped and held in place. Carbon monoxide may be assumed to behave as an ideal gas, with a constant pressure heat capacity of = 29.3 kJ/kmol*K, which may be considered constant over the temperature range in this problem. Consider the following processes: a. Calculate the final pressure and temperature of the gas.