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JEE Main 202524 JanuaryMorning Shift
Exam
JEE Main
Year
2025
Date
24 January
Shift
Morning Shift
Subject
Chemistry
Chapter
States of Matter

JEE Main 2025 · 24 January · Morning Shift · Chemistry · States of Matter

For a reaction, N_2 O_ 5(~g) arrow 2 NO_ 2(~g) +(1)/(2) O_ 2(~g) in...

For a reaction, N2O5( g)→2NO2( g)+12O2( g)\mathrm{N}_2 \mathrm{O}_{5(\mathrm{~g})} \rightarrow 2 \mathrm{NO}_{2(\mathrm{~g})}+\frac{1}{2} \mathrm{O}_{2(\mathrm{~g})} in a constant volume container, no products were present initially. The final pressure of the system when 50%50 \% of reaction gets completed is

Options

  1. A5 times of initial pressure
  2. B5/25 / 2 times of initial pressure
  3. C7/27 / 2 times of initial pressure
  4. D7/47 / 4 times of initial pressure

Correct answer

D. 7/47 / 4 times of initial pressure

Step-by-step solution

x=P02Ptotal =P0−P02+P0+P04=74P0\begin{gathered}x=\frac{P_0}{2} \\ P_{\text{total }}=P_0-\frac{P_0}{2}+P_0+\frac{P_0}{4}=\frac{7}{4} P_0\end{gathered}
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