Simple Pressure and Energy State Equations for Lennard-Jones (12,6) Fluid

A recently published (Paynter, 1985, 1988) simple veridical equation of state represents a direct extension and generalization of the classical van der Waals equation, yet at the same time remains consistent with modern nonanalytical expansions about the critical point. With the use of this particular equation of state, compact expressions are here obtained for the pressure and configurational energy of the Lennard-Jones (12, 6) fluid, together with a saturation curve and other coexistence properties.