Verified Solution • 2025–26 Session moderate

QJEEM25Ch6f4c: JEE Main 2025 Chemistry - Class 12 JEEM25Ch6f4c Solution: Consider an elementary reaction If the volume of reaction…

Consider an elementary reaction

A( g)+B( g)→C( g)+D( g)\mathrm{A}(\mathrm{~g})+\mathrm{B}(\mathrm{~g}) \rightarrow \mathrm{C}(\mathrm{~g})+\mathrm{D}(\mathrm{~g})

If the volume of reaction mixture is suddenly reduced to 13\frac{1}{3} of its initial volume, the reaction rate will become ' x′x^{\prime} times of the original reaction rate. The value of xx is :

Multiple Choice Options

  • A 3
  • B 9
  • C 13\frac{1}{3}
  • D 19\frac{1}{9}

Step-by-Step Verified Solution

amp;R1=K[ A]1[ B]1amp;R1=K[nA V]1[nB V]1amp;R2=K[3nA V]1[3nB V]1amp;R2=9R1\begin{aligned}& \mathrm{R}_1=\mathrm{K}[\mathrm{~A}]^1[\mathrm{~B}]^1 \\& \mathrm{R}_1=\mathrm{K}\left[\frac{\mathrm{n}_{\mathrm{A}}}{\mathrm{~V}}\right]^1\left[\frac{\mathrm{n}_{\mathrm{B}}}{\mathrm{~V}}\right]^1 \\& \mathrm{R}_2=\mathrm{K}\left[\frac{3 \mathrm{n}_{\mathrm{A}}}{\mathrm{~V}}\right]^1\left[\frac{3 \mathrm{n}_{\mathrm{B}}}{\mathrm{~V}}\right]^1 \\& \mathrm{R}_2=9 \mathrm{R}_1\end{aligned}

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