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  • Assuming an elementary reaction <img alt="\mathrm{3 \mathrm{X}^{-}+\mathrm{H}_2 \mathrm{O}_2+2 \mathrm{H}^{+} \rightarrow 2 \mathrm{H}_2 \mathrm{O}+\mathrm{X}_3^{-}. }" src="https://entra

Assuming an elementary reaction

\mathrm{3 \mathrm{X}^{-}+\mathrm{H}_2 \mathrm{O}_2+2 \mathrm{H}^{+} \rightarrow 2 \mathrm{H}_2 \mathrm{O}+\mathrm{X}_3^{-}. } 

The effect in the rate of the reaction brought by tripling the concentration of X-without changing the order and other species

Option: 1

The rate increase by multiple of 3
 


Option: 2

The rate would be multiplied by 8
 


Option: 3

The rate would by multiplied by 27
 


Option: 4

The rate would by multiplied by 9


Answers (1)

best_answer

\because  It is an elementary reaction

 \mathrm{ \therefore \text { Rate }=K\left[X^{-}\right]^3\left[\mathrm{H}_2 \mathrm{O}_2\right]\left[\mathrm{H}^{+}\right]^2 }

By tripling \mathrm{\left[x^{-}\right],}

\mathrm{ \begin{aligned} & \text {Rate }_2=(3)^3 \mathrm{~K}\left[\mathrm{X}^{-}\right]^3\left[\mathrm{H}_2 \mathrm{O}_2\right]\left[\mathrm{H}^{+}\right]^2 \\ & \mathrm{Rate}_2=27 \text { Rate } \end{aligned} }

Posted by

seema garhwal

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