Chemical Kinetics Question 275
Question: The half-life of a reaction is inversely proportional to the square of the initial concentration of the reactant. Then the order of the reaction is
Options:
A) 0
B) 1
C) 2
D) 3
Show Answer
Answer:
Correct Answer: D
Solution:
[d] $ {t_{1/2}}\propto \frac{1}{a^{2}} $ We know that $ {t_{1/2}}\propto \frac{1}{{a^{n-1}}} $ i.e. $ n=3 $ Thus reaction is of 3rd order.