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Derivation of Kp and Kc

The ratio of ...

Question

The ratio of $K_{p} / K_{c}$ for the reaction, $C O (g) + \frac{1}{2} O_{2} (g) ⇌ C O_{2} (g)$ is

A

1

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B

R T

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C

(R T)^{1 / 2}

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D

(R T)^{- 1 / 2}

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Solution

The correct option is D $(R T)^{- 1 / 2}$
We know that
$K_{p} = K_{c} (R T)^{△ n}$
$C O (g) + \frac{1}{2} (O_{2}) (g) \to C O_{2} (g)$
$△ n = n_{p} - n_{r}$
$△ n = 1 - (1 + \frac{1}{2}) = - \frac{1}{2}$
So, $\frac{K_{p}}{K_{c}} = (R T)^{- 1 / 2}$

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Derivation of Kp and Kc

Standard XII Chemistry

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