Calculate activation energy from rate data.
The Arrhenius equation for Energy Barrier scales a pre-exponential factor by the exponential of the negative activation energy over the gas constant and temperature. Even a small rise in temperature raises the rate constant sharply because it sits inside an exponential.
Energy Barrier
k = A.exp(-Ea/RT)
k = A.exp(-Ea/RT) The Arrhenius equation for Energy Barrier scales a pre-exponential factor by the exponential of the negative activation energy over the gas constant and temperature.
Even a small rise in temperature raises the rate constant sharply because it sits inside an exponential.
This calculator takes 3 inputs: Pre-exponential factor, Activation energy, Temperature. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.