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NEET2012ChemistryChemical EquilibriumActual

Given that the equilibrium constant for the reaction, 2 SO ₂(g)+ O ₂(g) 2 SO ₃(g) has a value of 278 at a particular temperature. What is the value of the equilibrium constant for the following reaction at the same temperature? SO ₃(g) SO ₂(g)+ 1 2 O ₂(g)

Options

  1. A1.8 10⁻³
  2. B3.6 10⁻³
  3. C6.0 10⁻²
  4. D1.3 10⁻⁵

Correct answer

C. 6.0 10⁻²

Step-by-step solution

2 SO ₂(g)+ O ₂(g) 2 SO ₃(g) Equilibrium constant for this reaction, gathered K= [ SO ₃ ]^2 [ SO ₂ ]^2 [ O ₂ ] SO ₃(g) SO ₂(g)+ 1 2 O ₂(g) gathered Equilibrium constant for this reaction, K^ = [ SO ₂ ] [ O ₂ ]^ 1 2 [ SO ₃ ] On squaring Eq. (ii) both sides, we have (K^ )^2= [ SO ₂ ]^2 [ O ₂ ] [ SO ₃ ]^2 aligned & = 1 K & = 1 278 K^ & = 1 278 & = 0.003597 & =5.99 10⁻² & 6 10⁻² aligned

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