Showing that Processes in Closed and Open Systems Are Different
A mass M of gas is to be compressed from a temperature T_{1} \text { and a pressure } P_{1} \text { to } T_{2} \text { and } P_{2} in (a) a one-step process in a frictionless piston and cylinder,^{4} and (b) a continuous process in which the mass M of gas is part of the feed stream to the compressor of the previous illustration. Compute the sum Q + W for each process.