MEEN 241 FUNDAMENTALS OF THERMODYNAMICS/P. AKANGAH TEST C 4. Name: . Energy is added to a piston-cylinder arrangement, and the piston is withdrawn in such a way that the quantity PV remains constant. The initial pressure and volume are 200 kPa and 2 m', respectively. If the final pressure is 100 kPa, calculate the work done in kJ by the gas on the piston.