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Derivation of Kp and Kc

Cs + CO2g ⇋ 2...

Question

$C (s) + C O_{2} (g) ⇋ 2 C O (g)$

For the given reaction, the partial pressures of $C O_{2}$ and CO are 4.0 and 4.0 respectively at equilibrium, what is the value of $K_{p}$ for this reaction?

0.5

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Solution

The correct option is D 4
The equilibrium reaction is $C (s) + C O_{2} (g) ⇋ 2 C O (g)$ .

The expression for the equilibrium constant is $K_{p} = \frac{P_{C O}^{2}}{P_{C O_{2}}}$ .

Substitute values in the above expression.

$K_{p} = \frac{P_{C O}^{2}}{P_{C O_{2}}} = \frac{(4.0)^{2}}{4.0} = 4.0$ .

Hence, the correct option is $C$

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