Zel'dovich mechanism is a chemical mechanism which describes the oxidation of nitrogen and NOx formation, first proposed by the Russian scientists Yakov Borisovich Zel'dovich, David A. Frank-Kamenetskii and P.Ya. Sadovnikov in 1947. The reaction mechanisms read as
where and are the reaction rate constants in Arrhenius law. The overall global reaction is given by
The overall reaction rate is mostly governed by first equation since the second equation is much faster than the first equation that occurs instantaneously immediately following the first equation.
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