# Question: a vertical cylinder fitted with a frictionless piston of constant...

###### Question details

A vertical cylinder fitted with a frictionless piston
of constant mass contains H_{2}O initially saturated vapor
at 200 C. Heat leaves the system until the H_{2}O
exists as saturated liquid. Calculate the work and heat for
the process. Show the process on a T-v and P-v diagram
including the saturation curve. State all assumptions.