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]
The order of the reaction will be equal to one.