Tamilnadu BoardEnglish MediumSTD 12ChemistryChemical Kinetics1 Mark
Question
Define rate constant.
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Answer
For a reaction involving the reactants, $A$ and $B$, Reaction rate $=k[A]^m[B]^m$ The constant $k$ is called rate constant of the reaction.If $[A]=1 M$ and $[B]=1 M$; Reaction rate $=k$ Thus, the rate constant $(k)$ of a reaction is equal to the rate of reaction when the concentration of each reactant is equal to $1 mol L ^{-1}$. The change in the concentration of reactant or product per unit time under the condition of unit concentration of all the reactants.
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