Chemistry - Chemical Equilibrium Question with Solution | TestHub

$$\begin{array}{c}\text{Steam}\text{decomposes}\text{at}\text{high}\text{temperature}\text{according}\text{to}\text{the}\text{equation:}\\ {\text{2H}}_{\text{2}}\text{O(g)}\rightleftharpoons {\text{2H}}_{\text{2}}\text{(g)}\text{+}{\text{O}}_{\text{2}}\text{(g);}\Delta {\text{H}}^{{}^{\circ }}\text{=}\text{240}\text{kJ/mole}\text{and}\Delta {\text{S}}^{{}^{\circ }}\text{=}\text{50}\text{J}{\text{K}}^{\text{-1}}\text{/mole}\\ \text{The}\text{temperature}\text{at}\text{which}\text{the}\text{equilibrium}\text{constant}{\text{(K}}_{\text{p}}^{{}^{\circ }}\text{)}\text{becomes}\text{1.0,}\text{is}\end{array}$$