0.8 kg water initially at 300 kPa and 250°C is contained in a piston-cylinder device fitted with stops (statel). The water is allowed to cool at constant pressure until one-half of the mass condenses and the piston just rests on the stops (state2). Then the water continues to cool until the pressure is 100 kPa (state3). (a) What is the phase of water at state 1, and why? (b) What is the phase of water at state 2, and specific volume v2? (Hint: think about if pressure changes from state 1 to state 2?) (c) What is the phase of water at state 3, and internal energy per unit mass u3? (Hint: think about if volume changes from state 2 to state 3?) Water 300 kPa 250°C Q (d) On the T-v diagram sketch with saturated lines, show the process paths passing through three states of the water.