For a reaction, A + B product, it is found that rate law is r = k [ A ]^ 1.5 [ ~B ]^ 2.5 . What is the order of reaction?

Step-by-step solution

Rate Law Analysis The rate law is given as r = k[A]^ 1.5 [B]^ 2.5 . The order with respect to A is 1.5 , and the order with respect to B is 2.5 . The overall order is the sum of the individual orders: 1.5 + 2.5 = 4 . Among the options—A) 1.5 , B) 2.5 , C) +1 , D) 4 —the correct overall order is 4 , corresponding to option D.