Chemistry — Steady-State Kinetics

\frac{d[\text{I}]}{dt} \approx 0\ \text{(steady state)}

\text{rate} = \frac{k_1 k_2 [\text{A}][\text{B}]}{k_{-1} + k_2}

\text{pre-equilibrium: } K = \frac{k_1}{k_{-1}}

k_{obs} = \frac{k_1 k_2}{k_{-1}}