Which describes a way to speed up the collisions between hydrogen and oxygen molecules to produce more water?

Equation:2H2 (g) + O2 (g) → 2H2O (g)

Smaller container means less volume, and the molecules will hit the walls of the container more frequently because there's less space available and the pressure will go up. I guess this would mean that the side with fewer moles would be favored as a result. We count the number of moles on the reactants and products and find that there are fewer moles on the product side, so I guess this would favor the product formation.