3) A piston-cylinder device contains 0.8 kg of steam at 300°C and 1 MPa. Steam is cooled at constant pressure until one-half of the mass condenses. (a) Show the

3) A piston-cylinder device contains 0.8 kg of steam at 300°C and 1 MPa. Steam is
cooled at constant pressure until one-half of the mass condenses.
(a) Show the process on a T-v diagram.
(b) Find the final temperature.
(c) Determine the volume change.