Final answer:
The equilibrium partial pressure of CO cannot be determined with only the partial pressure of H₂O given; additional information such as equilibrium constants or initial conditions is needed.
Step-by-step explanation:
To calculate the equilibrium partial pressure of CO, we would need additional information from the equilibrium constants or the initial partial pressures and amounts of the reacting gases. Without this information, the equilibrium partial pressure of CO cannot be determined from only the partial pressure of H₂O. In chemical equilibrium problems, it's crucial to know the initial conditions and the equilibrium constant to apply the appropriate equations and the Law of Mass Action.
In similar equilibrium scenarios where the equilibrium constants or initial conditions are provided, you would use the provided data to set up an ICE (Initial, Change, Equilibrium) table and apply the equilibrium expression to solve for the unknown partial pressures. This usually involves writing out the balanced chemical equation, filling out the ICE table with the initial conditions, calculating the change needed to reach equilibrium based on stoichiometry, and then applying the calculated changes to find equilibrium conditions.