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Vant Hoff's Equation and Effect of Temperature on Equilibrium Constant

In the equili...

Question

In the equilibrium, $2 S O_{2} (g) + O_{2} (g) ⇌ 2 S O_{3} (g),$ the equilibrium partial pressure of $S O_{2}, O_{2}$ and $S O_{3}$ are $0.6, 0.1$ and $0.3$ atm respectively. what would be the $K_{p}$ ?

A

5

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B

2.5

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C

0.8

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D

3.5

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Solution

The correct option is B $2.5$
$K_{P} = \frac{{[{S O}_{3}]}^{2}}{{[{S O}_{2}]}^{2} [O_{2}]}$
$= \frac{{(0.3)}^{2}}{{(0.6)}^{2} (0.1)}$
$= \frac{0.3 \times 0.3}{0.6 \times 0.6 \times 0.1}$
$= 2.5$

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