Question

define molecularity and order?​

Answer 1

Answer:

Molecularity of the reaction can be defined as the total number of reacting species in a rate-determining step. On the other hand, the order of reaction is the summation of powers of concentration of the reactant molecules in the rate equation of the reaction.

Answer 2

Explanation:

The molecularity of a reaction is defined as the number of reacting molecules which collide simultaneously to bring about a chemical reaction. In other words, the molecularity of an elementary reaction is defined as the number of reactant molecules taking part in the reaction