Question

The reaction that obeys the expression, $t_{\frac{1}{2}}=\frac{1}{K\left[A\right]}$ in chemical kinetics is of ____ order reaction.

• A. 0
• B. 1
• C. 2
• D. 3

Answer 1

The correct option is C 2

For second order reaction:

$Kt=\frac{1}{[A{]}_t}-\frac{1}{[A{]}_0}$

At $t_{1/2},[A{]}_t=\frac{[A{]}_0}{2}$

$t_{{}^1{/}_2}=\frac{1}{K[A{]}_0}$