2015 AP Chemistry free response 1 b c

2015 AP Chemistry free response 1 b c - what happens to the potential when there is less oxygen

[jacksonpolls]

I see what you are saying. However when they mean potential, they are talking about reaction rates. I know, its weird. So he is actually right. They tell us that air pressure is lower in higher altitudes. So we have to assume that the because there is less air at high altitudes, there would be less oxygen and thus it would serve as sort of a limiting reactant. Thus the reaction potential would be a lot lower. Hope it helped. My source is myself: high school Chemistry teacher.

[thisnicklldo]

That answer to part C doesn't make sense. Yes, there will be less reactions, but the potential of each reaction that does occur will still be 1.34 + 0.31V and the voltage across the battery still 1.65V. But it will be able to deliver less current, because there's less oxygen to fuel the cell. So surely the 'cell potential' remains at 1.65V?