You have a pressure cooker that initially contains $50\%$ saturated liquid and $50\%$ saturated vapor by

mass $($i$.$e$.,$ x$=0\mathrm{.}5)$ at $100$ kPa. With the cooker sealed shut, you add heat until the last bit of liquid

water has just vaporized. Find P$,$ T and the amount of heat that was added $($kJ$/$kg$).$ Hint: What

property is held constant as the heat is being added? Provide a hand sketch of the process on a P$-$v

plot showing the dome in relation to your process.

Note that this is a phase change fluid problem, so don$$t use the ideal gas H$2$ O tables. We$$ll talk

about what the difference between these is$.$