Water contained in a piston-cylinder assembly undergoes two process in series from an initial state where the pressure is 10 bar and the temperature is 40°C. at first, the water is cooled as it is compressed at a constant volume to 150°C

a) Sketch both processes on T-V and P-V diagram
b) For the overall process determine the work in kJ/kg
c) For the overall process detrermine the heat transfer in kJ/kg