The Arrhenius framework — the empirical two-parameter temperature dependence k(T) = A·exp(-E_a/RT) that underlies every phenomenological reaction-rate fit for 130+ years. A is the pre-exponential factor (also called the attempt frequency…
Arrhenius framework: k = A·exp(-E_a/RT) and Arrhenius-plot slope
Related concepts
- Arrhenius equation
- Arrhenius: k(T → ∞) = A; k(T → 0⁺) = 0; ln[k(T)/k(2T)] = -E_a/(2RT)
- Lindemann-Hinshelwood unimolecular framework: k_uni = k₁·k₂·[M]/(k₋₁·[M] + k₂) (fall-off between 2nd and 1st order)
- Arrhenius 1889: k(T) = A·exp(−E_a/(k_B T))
- Femtochemistry detail (Zewail 1988)
- Polanyi rules detail (1962)
- RRKM (Marcus 1952)
- Variational TST (Truhlar 1985)
- KIE (Bigeleisen 1949)