Question

The relationship between half-life of a reaction and the order of reaction is

• A. $t_{1/2} \propto\frac{1}{a^{\left(n+1\right)}}$
• B. $t_{1/2} \propto\frac{1}{a^{\left(n+2\right)}}$
• C. $t_{1/2} \propto\frac{1}{a^{\left(n\right)}}$
• D. $t_{1/2} \propto\frac{1}{a^{\left(n - 1\right)}}$

Answer 1

Answer: (D)

The half-life of the reaction is the time interval in which the initial concentration of the reactants is reduced to half the value. The half-life reaction depends on the order of the reaction and takes different forms for different reaction orders.
$t_{\frac{1}{2}} \propto \frac{1}{a^{(n-1)}}$