[doobster]

imagine one has a container with a fixed volume (say 1L ) that has been filled with ½ L of water and hermetically sealed at room temperature and standard pressure (1atm). then the container is uniformly and slowly heated. Is there a calculation that could be done to plot the change in pressure of the gas above the water with increasing temperature up to say 100 deg C? is the pressure/temperature graph of the gas the same as that of the liquid (considering one is compressible and the other is not)? is the graph linear throughout? maybe it is horizontal? what happens after 100C (lets say to 120 degrees C)? is there a point where the water is completely evaporated (is PV=nRT applicable at this point)?

[zxt]

you can use Clapeyron equation:
                                           ln(p1/p2)=(△H_vap/R)*(1/T₂-1/T₁)
and R=8.314J/(K*mol),△H_vap is evaporation heat