For the following exothermic reaction system at equiLiBrium: H₂O(g) + CO(g) ⇌ CO₂(g) + H2(g), choose the changes that will shift the equiLiBrium position to the right?
1) Decreasing the concentration of CO₂(g)
2) Increasing the concentration of H₂O(g)
3) Increasing the concentration of CO(g)
4) Decreasing the concentration of H2(g)
