TRANSPORT AND RELAXATION PROPERTIES OF N2

Classical trajectory rigid-rotor calculations of viscosity, diffusion and thermal conductivity have been performed using the anisotropic pot ential energy surface of van der Avoird et al. for temperatures in the range 77-2150 K. Results are compared with available experimental dat a and previous calculations. Agreement with the measurements is genera lly within experimental error when a small second-order contribution i s included. Values for the volume viscosity, viscomagnetic and thermom agnetic effects, depolarized Rayleigh scattering and spin relaxation c ross-sections are also compared with experiment. While no completely c onsistent pattern emerges from these comparisons, they suggest that th e surface may be insufficiently anisotropic in the regions sampled by collisions at room temperature and below.