Computation of some thermodynamic properties of nitrogen using a new

Abstract

A new pair-potential energy function of nitrogen has been determined via the inversion of reduced viscosity<br><br>collision integrals and fitted to obtain an analytical potential form. The pair-potential reproduces<br><br>the second virial coefficient, viscosity, thermal conductivity, self-diffusion coefficient, and thermal diffusion<br><br>factor of nitrogen in a good accordance with experimental data over wide ranges of temperatures<br><br>and densities. We have also performed the molecular dynamics simulation to obtain pressure, internal<br><br>energy, heat capacity at constant volume, and self-diffusion coefficient of nitrogen at different temperatures<br><br>and densities using our calculated pair-potential and some other potentials. The molecular dynamics<br><br>of the nitrogen molecules has been also used to determine nitrogen equation of state in two (low and<br><br>high) pressure ranges. Our results are in a good agreement with experiment and literature values.