5. In an isolated, vertical piston-cylinder device, there is a total of 10 kg of water, initially
6 kg in the vapor phase. The mass of the piston maintains a constant pressure of 200
kPa in the cylinder. At 0.5 MPa and 350 Celsius from a feed line, steam is allowed to
enter until all the liquid in the cylinder evaporates.
Determine
a) final temperature in the cylinder, and
b) the mass of steam entering the cylinder.