The Activation Energy Calculator determines the minimum energy required for a chemical reaction to occur, based on the Arrhenius equation:
ln(k₂ / k₁) = (Eₐ / R) × (1/T₁ − 1/T₂).
By entering two rate constants (k₁, k₂) and their corresponding temperatures (T₁, T₂), this calculator computes the activation energy (Eₐ) in both joules per mole (J/mol) and kilojoules per mole (kJ/mol), helping you analyze reaction kinetics and temperature dependence.