Model environment with thermal and transport properties of liquid water

A model of a Frenkel gas-solid medium consisting of Н$_2$О molecules and H$_{3}$O$^{+}$ and OH$^{-}$ ions with the same density and concentration of particles as liquid water is considered. Particles make a thermal vibrational-diffusive motion, during which they collide, exchange protons and interconvert. Under the assumption that the medium is retained by the dipole-ion interaction forces, it was shown that the evaporation enthalpy $H$, specific heat $C$, and also the transport parameters of the medium – self-diffusion coefficient $D$, viscosity $\eta$, and thermal conductivity $\theta$ – are close to the reference values for liquid water throughout the interval of its existence (250–600 K).