Half life period of 2nd order reaction is

Question

Half life period of 2nd order reaction is (A) proportional to initial concentration of reactants (B) independent of initial concentration of reactants (C) inversely proportional to initial concentration of reactants (D) inversely proportional to square of initial concentration of reactants

Tardigrade Admin · Accepted Answer

t1/2 propto (1/[a0]n-1)where n = order of reaction If n=2 then t1/2 propto (1/[a0]2-1) or t1/2 propto (1/[a0])

Q. Half life period of 2nd order reaction is

proportional to initial concentration of reactants

independent of initial concentration of reactants

inversely proportional to initial concentration of reactants

inversely proportional to square of initial concentration of reactants

$t_{1/2} \propto \frac{1}{[ a _{0} ] ^{n - 1}}$ where n = order of reaction
If n=2 then $t_{1/2} \propto \frac{1}{[ a _{0} ] ^{2 - 1}} or t_{1/2} \propto \frac{1}{[ a _{0} ]}$

Q. Half life period of 2nd order reaction is

proportional to initial concentration of reactants

independent of initial concentration of reactants

inversely proportional to initial concentration of reactants

inversely proportional to square of initial concentration of reactants

t1/2​∝[a0​]n−11​where n = order of reaction If n=2 then t1/2​∝[a0​]2−11​ort1/2​∝[a0​]1​

$t_{1/2} \propto \frac{1}{[ a _{0} ] ^{n - 1}}$ where n = order of reaction
If n=2 then $t_{1/2} \propto \frac{1}{[ a _{0} ] ^{2 - 1}} or t_{1/2} \propto \frac{1}{[ a _{0} ]}$