Use the conditions and processes of Problem 19.62 to compute (a) The work done by the gas,

Question:

Use the conditions and processes of Problem 19.62 to compute
(a) The work done by the gas, the heat added to it and its internal-energy change during the initial expansion;
(b) The work done, the heat added, and the internal-energy change during the final cooling;
(c) The internal-energy change during the isothermal compression.