Order of reaction
Aug 26, 2022, 16:45 IST
About Order of reaction
The mathematical expression showing the dependence of rate on the concentration(s) of reactant(s) is known as rate-law or rate-expression of the reaction and sum of the indices (powers) of the concentration terms appearing in the rate law as observed experimentally is called order of reaction. To understand what is order of reaction, consider the reaction:
2NO(g) + 2H2(g) ¾® N2(g) + 2H2O (g)
Kinetic experiment carried out at 1100 K upon this reaction has shown following rate data.
From the Expt. No.1 and 2, it is evident that rate increases 4 fold when concentration of NO is doubled keeping the concentration of H2 constant i.e.Rate µ [NO]2 when [H2] is constant again from Expt. No.2 and 3, it is evident that when concentration of H2 is doubled keeping the concentration of NO constant, the rate is just doubled i.e.
Rate µ [H2] when [NO] is constant
Find Below the details about order of reaction
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