Solveeit Logo

Question

Chemistry Question on Order of reaction

Arrange the following rate constant units in increasing order of their order of reaction:(A) sec-1
(B) mol L-1 sec-1
(C) mol-1 L sec-1
(D) mol-1 L2 sec-1
Choose the correct answer from the options given below:

A

(C) < (A) < (B) < (D)

B

(C) < (B) < (A) < (D)

C

(B) < (A) < (C) < (D)

D

(A) < (B) < (C) < (D)

Answer

(C) < (A) < (B) < (D)

Explanation

Solution

The rate constant’s unit depends on the reaction order. For example, a first-order reaction has units of sec⁻¹, while second- and higher-order reactions involve units of concentration (mol/L) raised to varying powers. Thus, ordering is (C) < (A) < (B) < (D).