Arrhenius rate constant
Arrhenius rate constant: use pre-exponential factor, activation energy, absolute temperature. Review the formula, worked example and calculation steps.
Inputs
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Formula & explanation
k = A exp(−E_a/(RT))
Variables & units
- Pre-exponential factor
- rate-constant unit · minimum 0, maximum 1000000000000
- Activation energy
- J/mol · minimum 0, maximum 1000000000000
- Absolute temperature
- K · minimum 5e-324, maximum 1000000000000
Worked example
Use the displayed example inputs, then follow the substituted values in the solution.
Assumptions
Single Arrhenius model with constant parameters; rate-constant units depend on reaction order.
References
Formula version 1.0.0. JavaScript floating-point arithmetic applies. Results display up to 6 decimal places; stored values retain available precision. Use the units shown.
Practice with an example
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