Chemistry - Chemical Kinetics Question with Solution | TestHub

Half-life depends on the order of reaction:

First-order reaction:

$t_{1/2}=\frac{0.693}{k}$

Independent of initial concentration → (a)

Inversely proportional to $k$ → (b)

Second-order reaction:

$t_{1/2}=\frac{1}{ka}$

Inversely proportional to initial concentration → (c type behaviour)

Zero-order reaction:

$t_{1/2}=\frac{a}{2k}$

Directly proportional to initial concentration → (d)