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Answer the following.
Identify the reaction order from each of the following rate constants:
(i)[1.0]
$k = 2\cdot3 \times 10^{-5}\text{ L mol}^{-1}\text{ s}^{-1}$
(ii)[1.0]
$k = 3 \times 10^{-4}\text{ s}^{-1}$
Answer
Answer (i)
AISecond order, because the unit of $k$ is $\mathrm{L\ mol^{-1}\ s^{-1}}$.
Answer (ii)
AIFirst order, because the unit of $k$ is $\mathrm{s^{-1}}$.
From ISC 2018 Specimen Chemistry Paper 1, question 2(a).