Question: air is contained in a pistoncylinder device the initial volume...
Air is contained in a piston-cylinder device. The initial volume is 0.3m3 and the initial temperature and pressure are 300K and 6 bar, respectively. The environmental state is 25C and 1 bar.
a. Determine the exergy of the air in kJ at this initial state. The air expands at a constant pressure until its volume has doubled.
b. Determine the change in exergy of the air in kJ.