The equilibrium constants of the following are:

$\begin{matrix} N_{2} + 3 H_{2} ⇌ 2 {NH}_{3} & K_{1} \\ N_{2} + O_{2} ⇌ 2 NO & K_{2} \\ H_{2} + \frac{1}{2} O_{2} \to H_{2} O & K_{3} \end{matrix}$

The equilibrium constant ( $K$ ) of the reaction:

$2 N H_{3} + \frac{5}{2} O_{2} \overset{K}{⇌} 2 N O + 3 H_{2} O$ , will be:NEET 2017

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TestHub · Accepted Answer

(I) N 2 + 3 H 2 ⇌ 2 NH 3 ; K 1 = NH 3 2 N 2 H 2 3 (II) N 2 + O 2 ⇌ 2 NO ; K 2 = NO 2 N 2 O 2 (III) H 2 + 1 2 O 2 → H 2 O ; K 3 = H 2 O H 2 O 2 1 2 II + 3 × III - I will give 2 N ⁡ H ⁡ 3 + 5 2 O ⁡ 2 ⇌ K ⁡ 2 N ⁡ O ⁡ + 3 H ⁡ 2 O ⁡ ; ∴ K = K 2 × K 3 3 K 1

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