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# The experimental data for decomposition of N_2 O_5 [2N_2 O_5 gives 4NO_2 + O_2] (question no. 5 )

4.15 (5)   The experimental data for decomposition of $N_2O_5 [2N_2O_5 \rightarrow 4NO_2 + O_2]$ in gas phase at 318K are given below:

Calculate the rate constant.

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From the log graph,

the slope of the graph is = $\frac{-2.46-1.79}{3200}$
= -k/2.303                             ..(from log equation)

On comparing both the equation we get,

$-k/2.303 = -0.67/3200$
$k= 3200\times (0.67/3200)$
$k= 4.82 \times 10^{-4}\ s^{-1}$

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