Question

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

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

Answer 1

The correct option is D $t_{\frac{1}{2}}\propto \frac{1}{a^{(n-1)}}$

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.

$t_{\frac{1}{2}}\propto$ $\frac{1}{a^{(n-1)}}$

Therefore $D$ is the correct option.