On the basis of the pVT-diagram, Figure 12.8, construct a sketch of the phase diagram for water in the VT-plane (specific volume on the horizontal axis, temperature on the vertical) for temperatures at which the liquid and vapor phases are relevant. Label the graph like Figure 12.7

At high temperature and low pressure in the gas phase, water is almost a perfect gas so T ∝ p V. Use this fact to help you draw some isobars.