Dissociation rate of N₂ due to cosmic-ray induced H₂ emission under interstellar cloud conditions, integrated cumulatively with increasing wavelength. Rates for ¹⁴N₂ are plotted with for several temperatures (solid curves), for and T_ex = 20 K (black dotted curve), and a single case is included for ¹⁴N 15N (red dotted curve).