What is k in the rate of law equation?

In the rate law equation, represented as ( \text{Rate} = k[A]^m[B]^n ), ( k ) is the rate constant that reflects the speed of the reaction at a given temperature. It is specific to the reaction and depends on factors such as temperature and the presence of catalysts. The units of ( k ) vary based on the overall order of the reaction, which is determined by the sum of the exponents ( m ) and ( n ).