When 1.50 mol of CO2 and 1.50 mol H2 are placed in a 3.00-L container at 395ºC, the following reaction occurs: CO2(g) + H2(g) ↔ CO(g) + H2O(g).
If Kc = 0.802, what are the concentrations of each substance in the equilibrium mixture?
The balanced chemical equation:
CO2(g) + H2(g) ↔ CO(g) + H2O(g)
The equilibrium expression for the reaction system
[CO] = [H2O] = x = 0.945 M
[CO2] = [H2] = 2.00 - 0.945 = 1.055 M = 1.06 M
[CO] = [H2O] = 0.945 M;
[CO2] = [H2] = 1.06 M.