Keywords = Nearest neighboring molecules
Thermodynamics,

The Modified Lennard-Jones and Devonshire Equation of State

Volume 5, Issue 3, Summer 2008, Pages 52-61

F. Aghamiri, H. modarress, G.A. Mansoori

Abstract Lennard-Jones-Devonshire equation of state is an old but theoretical based EOS. The concept of the nearest neighboring molecules or coordination number is proposed to be a function of temperature and volume, whereas it is a constant in the original. The dilute gas and hard sphere limits of molecules are employed to determine this function. Improvement of this modification is demonstrated by property calculations for Lennard-Jones fluid. Results of the modified LJD equation of state offer senior accord with simulation data of Lennard-Jones fluid than those of the original version.