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The reaction $2 \mathrm{NO}(\mathrm{g})+\mathrm{O}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{NO}_{2}(\mathrm{~g})$ is of first order. If volume of reaction vessel is reduced to $1 / 3$, the rate of reaction would be
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3 times
For following reaction, $2 \mathrm{NO}(\mathrm{g})+\mathrm{O}_{2}(\mathrm{~g})$ $\rightarrow 2 \mathrm{NO}_{2}(\mathrm{~g})$
When the volume of vessel is reduced to $\frac{1}{3}$ then concentration of reactant becomes three times.
The rate of reaction for first order reaction is proportional to the concentration. So rate of reaction will increase three times.
When the volume of vessel is reduced to $\frac{1}{3}$ then concentration of reactant becomes three times.
The rate of reaction for first order reaction is proportional to the concentration. So rate of reaction will increase three times.
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