A mixture of 1 mol of H2O (g) and 1 mol CO (g) is placed in an evacuated 1 liter reaction vessel at 1200 K at equilibrium 0.478 mols of O2 was present. Find Kc
CO(g) + H2O (g)<--------> CO2 (g) + H2(g)
Is this correct?
E = 1-x 1-x <----> 0.478 + x + x
0.478 + x (x) / 1.0-2x+x2
0.478x + x2 It looks like the x2 cancel so we will not do a quadratic and collect like terms to come up with Kc.
My question is, where do I go from here? Do I use a quadratic?
Your analysis of the question is very good, except you have misinterpreted the given parameters.
This solution is provided in 88 words. It discusses the parameters of the question and they are used to find the equilibrium constant.