JEE MAIN - Chemistry (2024 - 27th January Morning Shift - No. 22)
Consider the following data for the given reaction
$$2 \mathrm{HI}_{(\mathrm{g})} \rightarrow \mathrm{H}_{2(\mathrm{~g})}+\mathrm{I}_{2(\mathrm{~g})}$$
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The order of the reaction is _________.
Answer
2
Explanation
Let, $$\mathrm{R}=\mathrm{k}[\mathrm{HI}]^{\mathrm{n}}$$
using any two of given data,
$$\begin{aligned} & \frac{3 \times 10^{-3}}{7.5 \times 10^{-4}}=\left(\frac{0.01}{0.005}\right)^{\mathrm{n}} \\\\ & \mathrm{n}=2 \end{aligned}$$
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