STANDARD Chemistry Equilibrium Constant MCQ Question
The equilibrium constant for the following reaction will be P₄(s) + 5O₂(g) ⇌ P₄O₁₀(s)
Kₑ = [P₄][O₂]⁵ / [P₄O₁₀]
Kₑ = 1 / [O₂]⁵
Kₑ = [P₄O₁₀] / [P₄][O₂]³
Kₑ = [O₂]⁵
Correct Answer
Detailed Explanation
Since the concentration of solids is taken as 1, the expression for the equilibrium constant involves only oxygen. Therefore, Kₑ = 1 / [O₂]⁵.
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