Q. Half-life of a reaction is found to be inversely proportional to the cube of initial concentration. The order of reaction is
A) 4
B) 3
C) 5
D) 2
Explanation
(a)
$t_{1/2} \propto \frac{1}{a^{n - 1}}$
When $n = 4$
$t_{1/2} \propto \frac{1}{a^{3}}$
Hence, order of reaction $= 4$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.