1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

B Gravitational differentiation

  1. May 13, 2016 #1
    Does methane gravitationally differentiate in air, or does fluid dynamics mess things up & make it mix in with the air?
  2. jcsd
  3. May 13, 2016 #2


    User Avatar
    Science Advisor

    Both. Methane has molecular wt. approx. 16, while oxygen and nitrogen have molecular wts. of 32 and 28, so the methane would slowly rise when the air is perfectly still. However the air is never perfectly still, so wind,etc. tends to mix things up.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted