First order in the substrate and first order in the nucleophile define the rate of an SN2 reaction. The reaction rate doubles with a doubling of the substrate concentration. The rate also doubles when the concentration of the nucleophile is increased.
What is first order reaction?
- It is known as a first-order reaction when the rate of the reaction is proportional to the reactant concentration. Alternatively, the reaction rate doubles when the concentration is increased. The decomposition reaction is an example of a first-order reaction with one or two reactants.
- Depending on the concentration of one of the reactants, a first-order reaction rate will occur. Second-order reaction rates are inversely correlated with the square of a reactant's concentration or the product of the concentrations of two reactants.
- A chemical reaction that has only one reactant present at any given time has been referred to as a first-order reaction. If the first-order reactant concentration is doubled in such reactions, the process will accelerate.
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