Prediction of the Saturation Pressure of Water From Non-Equilibrium Measurements Available to Purchase

Statistical rate theory (SRT) was applied to predict the saturation pressure of H₂O based on the measurements of interfacial liquid-phase temperature, interfacial vapor-phase temperature, vapor-phase pressure, and average evaporation flux in non-equilibrium evaporation experiments. It is found that the predicted saturation pressure agrees with the Smithsonian Tables and Table given in the Handbook of Chemistry and Physics for water, H₂O. SRT provides a new efficient method to determine the saturation-vapor pressure from a non-equilibrium precess.