Activation Energy Calculator
Calculate the activation energy of a chemical reaction using the Arrhenius equation
Reaction Parameters
Calculation Results
Activation Energy (Eₐ)
0.00J/mol
Calculation Formula
The Arrhenius equation is used to calculate activation energy:
Eₐ = -R × [ln(k₂/k₁) / (1/T₂ – 1/T₁)]
Where R is the gas constant (8.314 J/mol·K)
Calculation Steps
Enter your values and click “Calculate” to see results
About Activation Energy
Activation energy (Eₐ) is the minimum energy that must be provided to compounds to result in a chemical reaction.
The Arrhenius equation gives the dependence of the rate constant k of a chemical reaction on the absolute temperature T.
The equation is: k = A × e^(-Eₐ/RT)
Where A is the pre-exponential factor, R is the gas constant, and T is the temperature in Kelvin.