Water at an initial state of 300 kPa and 523 K is contained in a piston-cylinder device fitted with stops. The water is allowed to cool at constant pressure untilit exists as a saturated vapor and the piston rests on the stops. Then the water continues to cool until the pressure is 100 kPa. On the T-v diagrams sketch, withrespect to the saturation lines, the process curves passing through both the initial, intermediate, and final states of the water. Label the T, P and v values forend states on the process curves. Find the overall change in internal energy between the initial and final states per unit mass of water. Also sketch the P-vdiagram showing the process curves and constant T lines.
**Please explain your steps in details