Chemistry — Eyring Equation

k = \frac{k_B T}{h}e^{-\Delta G^\ddagger / RT}

\Delta G^\ddagger = \Delta H^\ddagger - T\Delta S^\ddagger

\ln\frac{k}{T} = -\frac{\Delta H^\ddagger}{R}\frac{1}{T} + C

\text{activated complex at the barrier}