A Thermodynamic Equation of State For the Critical Region of Ethylene

A fundamental equation of state that describes the behavior of the thermodynamic properties of ethylene in the vicinity of the critical point is formulated. Specifically, a crossover equation of state that takes into account not only the scaling laws at the critical point but also the analytical behavior far away from the critical point is preseInted. Analysis of different sets of data for the thermodynamic properties is made.