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Third Law of Thermodynamics

In the reacti...

Question

In the reaction $2 N O (g) ⇌ N_{2} (g) + O_{2} (g)$ , the values of $K_{c}$ and $K_{p}$ are:

half

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double

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equal

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lesser

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Solution

The correct option is C equal
For a reaction, $a A + b B ⇌ c C + d D$
$Δ n = (c + d) - (a + b)$
$K_{p} = K_{c} (R T)^{Δ n}$
$2 N O (g) ⇌ N_{2} (g) + O_{2} (g)$
Here, $Δ n = (1 + 1 - 2) = 0$
Hence, $K_{p} = K_{c}$

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