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Characteristics of Equilibrium Constant

The equilibri...

Question

The equilibrium constant for the following reaction will be :
$P_{4 (s)} + 5 O_{2 (g)} ⇌ P_{4} O_{10 (s)}$

K_{c} = \frac{[P_{4}] [O_{2}]^{5}}{P_{4} O_{10}}

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K_{c} = \frac{1}{[O_{2}]^{5}}

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K_{c} = \frac{[P_{4} O_{10}]}{[P_{4}] [O_{2}]^{5}}

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K_{c} = [O_{2}]^{5}

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Solution

The correct option is B $K_{c} = \frac{1}{[O_{2}]^{5}}$
$P_{4} (s) + 5 O_{2} (g) ⇌ P_{4} O_{1} 0 (s)$
Since the value of solids is considered to be 1
$K_{c} = \frac{1}{[O_{2}]^{5} (g)}$

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