For the overall reaction cl2 + co → cocl2 (δh⁰ = −107.6 kj/mol), the following mechanism is proposed. step 1: cl2 equilibrium reaction arrow 2 cl• [fast equilibrium] step 2: cl• + co equilibrium reaction arrow cocl• [fast] step 3: cocl• + cl2 → cocl2 + cl• [slow] (a) determine the molecularity of each elementary step. step 1: unimolecular bimolecular termolecular step 2: unimolecular bimolecular termolecular step 3: unimolecular bimolecular termolecular (b) identify the intermediates in the reaction mechanism. (select all that apply.) cl2 cl• co cocl• cocl2 (c) identify the rate-limiting step in the reaction mechanism. step 1 step 2 step 3 (d) determine the energy profile that is consistent with the proposed mechanism. webassign plot webassign plot webassign plot webassign plot