Chemical Kinetics Ques 16
16. When initial concentration of a reactant is doubled in a reaction, its half-life period is not affected. The order of the reaction is :
[2015]
(a) First
(b) Second
(c) More than zero but less than first
(d) Zero
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Answer:
Correct Answer: 16.(a)
Solution:
(a) $t _{1 / 2}=\frac{0.693}{k}$
For first order $t _{1 / 2}$ is independent of initial concentration of reactant.