SO2(g) + 2H2S(g) ⇌ 3 S(s) + 2H2O(g)
is the basis of a suggested method for removal of SO2, a pollutant that irritates airways causing coughing, from powerplant stack gases.
The values below may be helpful when answering questions about the process.
Calculate the equilibrium constant Kp for the reaction at a temperature of 298 K.
Express the equilibrium constant to one significant figure.