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6.1. Equilibrium - 1 (chemical Equilibrium) — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry6.1. Equilibrium - 1 (chemical Equilibrium)1 Mark
MCQ
The equilibrium concentration of $X,\,Y$ and $Y{X_2}$ are $4$, $2 $ and $2$ moles respectively for the equilibrium $2X + Y$ $\rightleftharpoons$ $Y{X_2}$. The value of ${K_c}$ is
  • A
    $0.625$
  • ✓
    $0.0625$
  • C
    $6.25$
  • D
    $0.00625$
✓

Answer

Correct option: B.
$0.0625$
(b) ${K_c} = \frac{{[Y{X_2}]}}{{{{[X]}^2}[Y]}} = \frac{2}{{4 \times 4 \times 2}} = \frac{1}{{16}} = 0.0625$.

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