A pistoncylinder device initially contains 0.8 m3 of saturated water vapor at 250 kPa. At this state,

Question:

A piston–cylinder device initially contains 0.8 m3 of saturated water vapor at 250 kPa. At this state, the piston is resting on a set of stops, and the mass of the piston is such that a pressure of 300 kPa is required to move it. Heat is now slowly transferred to the steam until the volume doubles. Show the process on a P-v diagram with respect to saturation lines and determine
(a) The final temperature,
(b) The work done during this process, and
(c) The total heat transfer.