Question

The concentration of $R$ in the $R$ $\to$ $P$ was measured as a function of time and the following data is obtained:

$\left[R\right]$ (molar)	1.0	0.75	0.40	0.10
$t$ (min)	0.0	0.05	0.12	0.18

The order of the reaction is:

• A. 1
• B. 2
• C. 0
• D. cannot be predicted

Answer 1

Answer: (D)

cannot be predicted

The decay in $\left[R\right]$ and $\vartheta$ is not according to:

$\frac{1}{a^{n-1}}=\frac{1}{a_0^{n-1}}+(n-1)kt$

So ${}^{\prime }{n}^{\prime }$ cannot be predicted.