Q. The units of the rate constant of a second order reaction are
A) $mol^{- 1}L^{- 1}s^{- 1}$
B) $mol^{- 1}Ls^{- 1}$
C) $mol^{- 1}Ls$
D) $mol\ L^{- 1}s^{- 1}$
Explanation
(b)
$\frac{dx}{dt} = k\lbrack A\rbrack^{2}$
$k = \frac{dx}{dt\lbrack A\rbrack^{2}}$
$= \frac{mol(L)^{2}}{L \times s \times (mol)^{2}}$
$mol^{- 1}Ls^{- 1}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.