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  1. Arrhenius Equation

    Linked via "equilibrium constant"

    Relationship to Transition State Theory
    While the Arrhenius Equation is empirical, Transition State Theory (TST), developed by Henry Eyring and Michael Polanyi, provides a theoretical framework yielding a similar exponential dependence on temperature. TST relates the rate constant to fundamental constants and the equilibrium constant for the formation of the transition state ($K^\ddagger$):
    $$ k = \kappa \left(\f…

  2. Reaction Kinetics

    Linked via "equilibrium constant ($K^{\ddagger}$)"

    Transition State Theory (TST)
    Transition State Theory (TST) (developed independently by Eyring and Polanyi) provides a more rigorous description by treating the reactants as being in equilibrium with an activated complex, or transition state ($\text{TS}^{\ddagger}$), located at the saddle point on the PES. The rate constant is then related to the equilibrium constant ($K^{\ddagger}$) for t…