The combination of Cl atoms is catalysed by N_2(g). The following mechanism is suggested: N_2 + Cl ClN_2 (fast, equilibrium) ClN_2 + Cl rightarrow Cl_2 + N_2 (slow) Identify any reaction intermediates in this product mechanism. What is the rate determining step? Is this mechanism consistent with the experimental rate law, rate = k[N_2][Cl]^2?