An Etymological Dictionary of Astronomy and Astrophysics

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Arrhenius equation
  هموگش ِ آرنیوس  
hamugeš-e Arrhenius
Fr.: équation d'Arrhenius  

An important relationship in physical chemistry that combines the concepts of → activation energy and the → Maxwell-Boltzmann distribution law. It is expressed by: k = Ae-Ea/(RT), where k is the chemical → reaction rate, Ea is the activation energy, R is the → gas constant, and T is → temperature.

See also: Named for Svante Arrhenius (1859-1927), Swedish chemist and physicist who suggested the relationship in 1889.