(Solved): A gas undergoes a cycle in a piston-cylinder assembly consisting of the following three processes: ...

A gas undergoes a cycle in a piston-cylinder assembly consisting of the following three processes: Process 1-2: Constant pressure, $$p=1.4$$ bar, $$V_1=0.028{\mathrm{m}}^3,W_{12}=5\mathrm{kJ}$$ Process 2-3: Compression with $$p\mathrm{V}=$$ constant, $$U_3=U_2$$ Process 3-1: Constant volume, $$U_1?U_3=?20\mathrm{kJ}$$ There are no significant changes in kinetic or potential energy. (a) Calculate the net work for the cycle, in $$\mathrm{kJ}$$. (b) Calculate the heat transfer for process 1-2, in $$\mathrm{kJ}$$. $$\mathrm{Part}A$$ Calculate the net work for the cycle, in kJ.