Question

How do partial pressures of gases influence one another?

Answer 1

Usually not at all.

Explanation:

`"Dalton's law of partial pressures"` states that in a gaseous mixture, the pressure exerted by a component gas is the same as the pressure it would exert if it `"ALONE"` occupied the container. In other words, given the same container, pressures are additive, and a partial pressure of a component gas does not influence the partial pressure of another component.

Of course the component gases could react with each other, but that's another story.