An equation of state for oxygen vapour—second and third virial coefficients

Based on a selected p, ρ, T data set of oxygen for the range from low to moderate densities an equation of state for oxygen vapour has been established. From this evaluation, new values for the second and third virial coefficients were derived. In addition, correlation equations for the temperature dependence of these virial coefficients are given. Estimations for the fourth virial coefficient were compared with the one predicted by the Lennard-Jones potential.