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  • A student has studied the decomposition of a gas  at  <img alt="25^{\circ} \mathrm{C}

A student has studied the decomposition of a gas  \mathrm{AB}_3 at  25^{\circ} \mathrm{C} . He obtained the following data.

                    

The order of the reaction is

Option: 1

0 (zero)


Option: 2

0.5


Option: 3

1


Option: 4

2


Answers (1)

best_answer

\begin{aligned} & \mathrm{t}^{1 / 2} \propto(\mathrm{Co})^{1-\mathrm{n}} \\ & =\frac{(\mathrm{t} 1 / 2)_1}{\left(\mathrm{t}^1 / 2\right)_2}=\left(\frac{\mathrm{P}_1}{\mathrm{P}_2}\right)^{1-\mathrm{n}} \\ & =\frac{4}{2}=\left(\frac{50}{100}\right)^{1-\mathrm{n}} \Rightarrow 2\left(\frac{1}{2}\right)^{1-\mathrm{n}} \\ & 2=(2)^{\mathrm{n}-1} \\ & \mathrm{n}=2 \end{aligned}

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