Dissociation and internal excitation of molecular nitrogen due to N2-N collisions using direct molecular simulation

populated as the system evolves. It is found that the non-equilibrium dissociation rate coe cients for the N + N2 process are larger than those for the N2 + N2 process. This is attributed to the non-equilibrium vibrational energy distributions for the N + N2 process being less depleted than that for the N2 +N2 process. For an isothermal simulation we find that the probability of dissociation goes as 1/Ttr for molecules with internal energy (✏int) less than ⇠ 9.9eV , while for molecules with ✏int > 9.9eV the dissociation probability was weakly dependent on translational temperature of the system. We compared non-equilibrium