When initial concentration of the reactant is doubled, the half-life period of a zero order reaction [2018]

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Solution

Q.
When initial concentration of the reactant is doubled, the half-life period of a zero order reaction [2018]

1 is halved

2 is doubled

3 is tripled

4 remains unchanged

Ans.
(2)

${(t_{1 / 2})}_{zero} = \frac{{[A]}_{0}}{2 k}$

As the half-life of a zero order reaction is directly proportional to initial concentration.

$∴$ If ${[A]}_{0}$ = doubled then, $t_{1 / 2}$ = doubled.

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