Question

For a zero order reaction, $A⟶P$, $t_{1/2}$ is:

($k$ is the rate constant, $[A{]}_0$ is the initial concentration of $A$)

• A. $\frac{{\left[A\right]}_0}{2k}$
• B. $\frac{\ln 2}{k}$
• C. $\frac{1}{k{\left[A\right]}_0}$
• D. $\frac{\ln 2}{{\left[A\right]}_{0}k}$

Answer 1

The correct option is A $\frac{{\left[A\right]}_0}{2k}$

For zero order

$kt=a{t}_{1/2}=\frac{a_o}{2k}=\frac{{\left[A\right]}_o}{2k}$