Chemistry · 2011
NEET 2011 · Prelims · Code A · Q58
For the reaction N_2( g )+ O_2( g ) ⇌ 2 NO ( g ), the equilibrium constant is K_1. The equilibrium constant is K_2 for the reaction 2 NO ( g )+ O_2(…
For the reaction $\displaystyle \mathrm{N}_2(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}(\mathrm{g})$, the equilibrium constant is $\displaystyle K_1$. The equilibrium constant is $\displaystyle K_2$ for the reaction $\displaystyle 2 \mathrm{NO}(\mathrm{g})+\mathrm{O}_2(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NO}_2(\mathrm{~g})$. What is $\displaystyle K$ for the reaction $\displaystyle \mathrm{NO}_2(\mathrm{~g}) \rightleftharpoons 1 / 2 \mathrm{~N}_2(\mathrm{~g})+\mathrm{O}_2(\mathrm{~g})$ ?
Official answer
(4)
$\displaystyle \left[1 / K_1 K_2\right]^{1 / 2}$
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