question_answer 78)

  For a reaction A + B ® Products, the rate law is  Can the reaction be an elementary reaction? Explain.

Answer:

                  During an elementary reaction, the number or atoms or ions colliding to react is referred to as molecularity. Had this been an elementary reaction, the order of reaction with respect to fi would have been 1, but in the given rate law it is  .This indicates that the reaction is not an elementary reaction. Hence, this reaction must be a complex reaction.