Chemistry - Chemical Equilibrium Question with Solution | TestHub

For the reaction, ${\mathrm{N}}_2(\mathrm{g})+{\mathrm{O}}_2(\mathrm{g})\rightleftharpoons 2\mathrm{NO}(\mathrm{g})$, the equilibrium constant is ${\mathrm{K}}_1$. The equilibrium constant is ${\mathrm{K}}_2$ for $2\mathrm{NO}(\mathrm{g})+{\mathrm{O}}_2(\mathrm{g})\rightleftharpoons 2{\mathrm{NO}}_2(\mathrm{g})$. What is K for the reaction ${\mathrm{NO}}_2(\mathrm{g})\rightleftharpoons \frac{1}{2}{\mathrm{N}}_2(\mathrm{g})+{\mathrm{O}}_2(\mathrm{g})?$NEET 2011 (Screening)