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JEE Mains · Chemistry · STD 11 - 6.2. Equilibrium - II (icon Equilibrium)

किसी दुर्बल वैद्युत अपघट्य \(\left(\mathrm{K}_{\mathrm{eq}}=\right.\) साम्यावस्था स्थिरांक) \(\mathrm{A}_2 \mathrm{~B}_3\) जिसकी सान्द्रता ' \(\mathrm{c}\) ' है, के सान्द्र विलयन के लिये आयनन की मात्रा " \(\alpha\) ' है।

  1. A \(\left(\frac{ K _{ eq }}{108 c ^4}\right)^{\frac{1}{5}}\)
  2. B \(\left(\frac{ K _{ eq }}{6 c ^5}\right)^{\frac{1}{5}}\)
  3. C \(\left(\frac{K_{e q}}{5 c^4}\right)^{\frac{1}{5}}\)
  4. D \(\left(\frac{ K _{ eq }}{25 c ^2}\right)^{\frac{1}{5}}\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(\left(\frac{ K _{ eq }}{108 c ^4}\right)^{\frac{1}{5}}\)

Step-by-step Solution

Detailed explanation

\(A _2 B _3 \text { (aq.) } \rightleftharpoons 2 A _{\text {(aq.) }}^{3+}+3 B _{\text {(aq) }}^{2-}\) \(K _{ eq }=\frac{\left[ A ^{3+}\right]^2\left[ B ^{2-}\right]^3}{\left[ A _2 B _3\right]}=\frac{4 c ^2 \alpha^2 \times 27 c ^3 \alpha^3}{ c (1-\alpha)}\)…
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