The suggested mechanism of a reaction is : (a) A+BhArrD("fast) "(b)A+Drarr2C("slow")Write the balanced equation of the reaction if its experimentally deduced rate equation is , rate k=[A]^(2)[B] Find the intermediate formed during the course of the reaction . Does the predicted rate law from the mechanism match the experimental rate law ?

The suggested mechanism of a reaction is : (a) A+BhArrD("fast) "(b)A+D

1.	The suggested mechanism of a reaction is : (a) A+BhArrD("fast) "(b)A+Drarr2C("slow")Write the balanced equation of the reaction if its experimentally deduced rate equation is , rate k=[A]^(2)[B] Find the intermediate formed during the course of the reaction . Does the predicted rate law from the mechanism match the experimental rate law ?
Answer» Solution :The overall reaction is the sum of the reaction (a) and (b) i.e.,`2A+Brarr2C` Here the intermediate is D. Now , `A+BhArrD,` `k=([D])/([A][B]) ("K = RATE constant")""...[1]` Rate EQUATION of the slowest step `k=[A][D]=k[A]xxK[A][B]` `=kK[A]^(2)[B]=k'[A]^(2)[B]`(where , kK=k') Yes , the predicted rate LAW from the mechanism MATCHES the EXPERIMENTAL rate law.