posted by Someone .
C(s) + H20(g)↔ CO(s) + H2(s)
the equilibrium constant for this reaction is 4.251 x 10^-2 at 800 K. if the equilibrium concentration of H2O(g)is 0.1990 M, what are the concentrations of CO, H2, and C?
I think you have this labeled wrong. CO and H2 certainly are not solids at 800 K; however, assuming you meant this then the concn of solid is 1, by definition, for C, CO, and H2. That definitely is not correct.