15. Chemical Kinetics
Reaction Mechanism
15. Chemical Kinetics Reaction Mechanism
14PRACTICE PROBLEM
Consider the following reaction: OCl–(aq) + I–(aq) → OI–(aq) + Cl–(aq). The proposed reaction mechanism is as follows:
OCl–(aq) + H2O(l) ⇌ HOCl(aq) + OH–(aq) k1 = forward reaction; k–1 = reverse reaction (fast equilibrium)
I–(aq) + HOCl(aq) → HOI(aq) + Cl–(aq) k2 (slow)
HOI(aq) + OH–(aq) → H2O(l) + OI–(aq) k3 (fast)
Establish a relationship between the rate constant k and the elementary reaction rate constants.
Consider the following reaction: OCl–(aq) + I–(aq) → OI–(aq) + Cl–(aq). The proposed reaction mechanism is as follows:
OCl–(aq) + H2O(l) ⇌ HOCl(aq) + OH–(aq) k1 = forward reaction; k–1 = reverse reaction (fast equilibrium)
I–(aq) + HOCl(aq) → HOI(aq) + Cl–(aq) k2 (slow)
HOI(aq) + OH–(aq) → H2O(l) + OI–(aq) k3 (fast)
Establish a relationship between the rate constant k and the elementary reaction rate constants.