QJEEM22Chc0d4: JEE Main 2022 Chemistry - Class 12 JEEM22Chc0d4 Solution: For the decomposition of azomethane. CH 3 N 2 CH 3 (g) CH 3 CH…

Question

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For the decomposition of azomethane.

CH₃N₂CH₃(g) $\to$ CH₃CH₃(g) + N₂(g), a first order reaction, the variation in partial pressure with time at 600 K is given as

JEE Main 2022 (Online) 25th July Evening Shift Chemistry - Chemical Kinetics and Nuclear Chemistry Question 66 English

The half life of the reaction is __________ $\times$ 10^{$-$ 5} s. [Nearest integer]

Accepted Answer

For first order reaction,

\begin{aligned}&amp;\ln A=\ln A_{0}-k t \\&amp;\text { Hence Slope }=-k \\&amp;-k=-3.465 \times 10^{4} \\&amp;k=\frac{0.693}{t_{1 / 2}} \\&amp;3.465 \times 10^{4}=\frac{0.693}{t_{1 / 2}} \\&amp;t_{1 / 2}=2 \times 10^{-5} \mathrm{~s}\end{aligned}

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