Relative concentration vs. altitude

1. Jan 31, 2009

kasse

Earth's atmosphere has roughly four molecules of nitrogen for every oxygen molecule at sea level;
more precisely, the ratio is 78:21. Assuming a constant temperature at all altitudes (not really very
accurate), what is the ratio at an altitude of 10km? Explain why your result is qualitative reasonable.

I found this formula, describing nanoparticles in air. I guess it then also can be used for gas molecules?

That way I get approx. 104:33

Last edited: Feb 1, 2009