Suppose sulfur dioxide reacts with oxygen at 25 degrees Celsius.
2SO2 (g) + O2 (g) -> <- 2SO3 (g)
The equilibrium constant Kc equals 8.0 x 10^35 at this temperature. From the magnitude of Kc, do you think this reaction occurs to any great extent when equilibrium is reached at room temperature? If an equilibrium mixture is 1.0 M SO3 and has equal concentrations of SO2 and O2, what is the concentration of SO2 in the mixture? Does this result agree with what you expect from the magnitude of Kc?