A gas within a piston-cylinder assembly undergoes a thermodynamic cycle consisting of three processes:
Process 1-2. Compression with pV=constant, from p1=1bar, V1=2m^3, to V2=0.2m^3, U2-U1=100kJ.
Process 2-3. Constant Volume to p3=p1.
Process 3-1. Constant-pressure and adiabatic process.
There are no significant changes in kinetic or potential energy. Determine the net work of the cycle in kJ and the heat transfer for process 2-3 in kJ. Is this a power cycle or a refrigeration cycle? Explain.