Chemistry - Chemical Equilibrium Question with Solution | TestHub

The equilibrium constant for $2\mathrm{S}{\mathrm{O}}_2(\mathrm{g})+{\mathrm{O}}_2(\mathrm{g})\rightleftharpoons 2\mathrm{S}{\mathrm{O}}_3(\mathrm{g})$ is 400 at a particular temperature. What is the equilibrium constant at the same temperature for the reaction $4\mathrm{S}{\mathrm{O}}_3(\mathrm{g})\rightleftharpoons 4\mathrm{S}{\mathrm{O}}_2(\mathrm{g})+2{\mathrm{O}}_2(\mathrm{g})$ ?