Chemistry · 2025
JEE Main · 23 January 2025, Shift 1 · Q73
For the thermal decomposition of N_2 O_5( g ) at constant volume, the following table can be formed, for the reaction mentioned below. 2 N_2 O_5( g )…
For the thermal decomposition of $\displaystyle \mathrm{N}_2 \mathrm{O}_5(\mathrm{~g})$ at constant volume, the following table can be formed, for the reaction mentioned below.
$$2 \mathrm{~N}_2 \mathrm{O}_5(\mathrm{~g}) \rightarrow 2 \mathrm{~N}_2 \mathrm{O}_4(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g})
$$
$$\mathrm{x}=\_\_\_\_ \times 10^{-3} \text { atm [nearest integer] }
$$Given : Rate constant for the reaction is $\displaystyle 4.606 \times 10^{-2} \mathrm{~s}^{-1}$.
| Sr.No | Time/s | Total pressure/(atm) |
| $\displaystyle 1$ | $\displaystyle 0$ | $\displaystyle 0.6$ |
| $\displaystyle 2$ | $\displaystyle 100$ | 'x' |
Official answer
From NTA’s final answer key for this paper.
897
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JEE Main 2025 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.