Arrhenius’ Equation is commonly expressed in the form shown in Figure A29. T is temperature in °Kelvin; R is the gas constant; E A, is the activation energy, the minimum energy in joules per mole needed for the reaction to take place; e is 2.71828; and A is essentially constant over the small temperature range of typical soil systems, and is related to such factors as stericity, and the number of collisions between molecular particles.
The rate of a given reaction is a function of the rate constant and the concentrations of all reactants. For reactions under earth surface conditions, with activation energies of about 50 kJ mol −1, the rate of reaction approximately doubles for a 10 °C rise in temperature.
Arrhenius' Equation.
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(2008). Arrhenius' Equation. In: Chesworth, W. (eds) Encyclopedia of Soil Science. Encyclopedia of Earth Sciences Series. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-3995-9_38
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