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JEE Mains · Chemistry · STD 11 - 6.1. Equilibrium - 1 (chemical Equilibrium)

\(\mathrm{A}(\mathrm{g}) \rightleftharpoons 2 \mathrm{~B}(\mathrm{~g})+\mathrm{C}(\mathrm{g})\) दिए गए अभिक्रिया के लिए, यदि प्रारम्भिक दाब \(450 \mathrm{~mm} \mathrm{Hg}\) है तथा समय \(\mathrm{t}\) पर दाब \(720 \mathrm{~mm} \mathrm{Hg}\) है। उपर्युक्त दशाओं में विघटित \(\mathrm{A}(\mathrm{g})\) का अंश \(\mathrm{x} \times 10^{-1}\) है। \(\mathrm{x}\) का मान है_______(निकटतम पूर्णाक में)

  1. A \(2\)
  2. B \(4\)
  3. C \(3\)
  4. D \(5\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(3\)

Step-by-step Solution

Detailed explanation

\(A _{( g )} \rightleftharpoons 2 B _{( g )}+ C _{( g )}\) \(t=0 \quad 450\) \(\text { timet } 450-x \quad 2 x\) \(P_T=P_A+P_B+P_C\) \(720=450-x+2 x+x\) \(2 x=270\) \(x=135\) Fraction of A decomposed \(=\frac{135}{450}=0.3=3 \times 10^{-1}\) So, \(x=3\)
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