Consider the following reaction at some temperature: H2O(g) + CO(g) H2(g) + CO2(g) K = 2.0 Some molecules of H2O and CO are placed in

Consider the following reaction at some temperature:
H2O(g) + CO(g) ‡Œ H2(g) + CO2(g) K = 2.0
Some molecules of H2O and CO are placed in a 1.0- L container as shown below.

When equilibrium is reached, how many molecules of H2O, CO, H2, and CO2 are present? Do this problem by trial and error€” that is, if two molecules of CO react, is this equilibrium; if three molecules of CO react, is this equilibrium; and so on.