State a condition under


State a condition under which a bimolecular reaction is a kinetically first-order



A condition under which the order of a chemical reaction can be altered is by taking the solvent or the reactant in the excess amount due to which its concentration does not change much.

Consider a bimolecular reaction

A + B → Product

Rate = k[A][B]

When concentration B is large rate becomes k’[A]

Where k’=k[B]

The order of the reaction will be equal to one.

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