Reaction Order Terminology
rate = k[A] first order overall (rate a [A])
rate = k[A]2 second order overall (rate a [A]2)
rate = k[A]0 = k(1) = k zero order (rate independent of [A])
Examples
NO(g) + O3(g) NO2(g) + O2(g)
rate = k[NO][O3] second order overall
2NO(g) + 2H2(g) N2(g) + 2H2O(g)
rate = k[NO]2[H2]1 third order overall
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