The equilibrium constant for the reaction: Nβ‚‚(g) + Oβ‚‚(g) β‡Œ 2NO(g) is 4.0 Γ— 10⁻⁴ at 2000 K. In the presence of a catalyst, the equilibrium is attained 10 times f | Chemical Equilibrium β€” Chem-Mantra | Chem-Mantra