A piston-cylinder system with stops contains 3 kg of saturated liquid water at 300 kPa. Heating causes some of the liquid water to evaporate, and the piston moves.

 

Upon reaching the stops, the piston makes the volume larger, and now the volume is 60 liters. We continue to heat (but the piston no longer moves due to the stops) until the pressure reaches twice the initial pressure.

Show the processes on a diagram. Which one is relevant? In this case, it is important to include the saturation dome. (Why?)

Find :

a) The quantity of liquid (if any remains) at the final state.

b) The final temperature

c) The net work

d) The net heat transfer