Calculate the values of Hr, Sr, and Gr for the production of high-purity silicon by the reaction

Calculate the values of ΔHr°, ΔSr°, and ΔGr° for the production of high-purity silicon by the reaction SiO₂(s) + 2 C(s, graphite) → Si(s) + 2 CO(g) at 25°C and estimate the temperature at which the equilibrium constant becomes greater than 1.