The concentration of $R$ in the reaction $R \longrightarrow P$ was measured as a function of time and the…
The concentration of $R$ in the reaction $R \longrightarrow P$ was measured as a function of time and the following data is obtained :
$\begin{array}{lllll}{[R] \text { (molar) }} & 1.0 & 0.75 & 0.40 & 0.10 \\ t \text { (min) } & 0.0 & 0.05 & 0.12 & 0.18\end{array}$
The order of the reaction is
Solution
$k_{\mathrm{I}}=\frac{\Delta[R]}{\Delta t}=\frac{0.25}{0.05}=5$
$
k_{\text {II }}=\frac{\Delta[R]}{\Delta t}=\frac{0.60}{0.12}=5
$
So, reaction must be of zero order.
Chemical kinetics
Straight conceptual
II