Calculator

Arrhenius equation

With the Arrhenius equation you can calculate the rate constant, the pre-exponential factor, the temperature and the activation energy of a reaction.

k = A ×exp(- E R × T )
() [Mⁱ⁻¹ s⁻¹] = () [Mⁱ⁻¹ s⁻¹] ×exp(- () [J] R × () [K] )

To fill in a variable, click on a bracket "()", a variable or a unit.
Input a number or a calculation, choose a unit and click on the button "Insert input".
The variable that you want to calculate, should be empty or filled in with an "x"/"X".
If everything is filled in correctly, a button ("Calculate") shoud appear, that has to be pressed.

If the calculation duration is too long (over 10 seconds) or an error occurs, check if every variable is filled in correctly.

Variables

k Rate constant
A Pre-exponential factor
E Energy
R Gas constant = 8.314462618 [kg m2 s-2 mol⁻¹ K⁻¹]
T Temperature
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{2.718281828459045}
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{8.314462618}
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{1}
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{(((}
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