Theoretical Equation of State for Water at High Pressures

An equation of state (EOS) for liquid water is constructed for high pressures. A perturbation technique is used to calculate the thermodynamic properties of water. The intermolecular interaction is described by a spherically symmetric, exponential‐6 potential and an angular dependent, multipolar contribution. Isothermal compression and the shock Hugoniot for water are well characterized by the theory.