1. Not finding help here? Sign up for a free 30min 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!

Planetary atmospheres

  1. Feb 10, 2015 #1
    1. The problem statement, all variables and given/known data
    calculate approximately how much more massive the Earth would have to be before it could retain a significant hydrogen atmosphere, assuming the Earth’s density to be the same as its current value.


    2. Relevant equations
    Temperature limit to retain hydrogen in the earths atmosphere: T «< 5042 (Mp/Rp ) *mn
    Mp= ratio of mass of planet/body to Earth’s RE
    Rp = ratio of radius of planet/body to Earth’s
    mn= atomic mass number of gas particle


    3. The attempt at a solution
    not sure how to begin , any tips much appreciated
     
  2. jcsd
  3. Feb 10, 2015 #2

    Bystander

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    2016 Award

    Reread the question for starters --- what's showing in "relevant equations" does NOT look terribly correct/useful.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Planetary atmospheres
  1. Planetary motion (Replies: 7)

  2. Atmospheric physics (Replies: 0)

Loading...