Concentrations of Components in an Equilibrium
The following equilibrium process at 686 deg. C.
CO2(g) + H2(g) f/r CO(g) + H20 (g)
The equilibrium concentration of the reacting species are [CO]=0.050 M, [H2]=0.045 M, [CO2]=0.086 M, and [H2O]=0.040 M.

I calculate Kc for the reaction at 686 deg. C. = 0.52

If CO2 is added to increase concentration ot 0.55 mol/L, what will the concentrations of all the gases be when equilibrium is re-established?

[CO2]=?
[H2]=?
[CO]=?
[H2O]=?