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!

Mixture of Gases

  1. Nov 27, 2007 #1
    1. The problem statement, all variables and given/known data

    A gas bottle contains a mixture of Helium and Oxygen molecules (O2 is diatomic). The root-mean-square velocity for the O2 molecules is 482 m/s. Find vrms for the Helium atoms.

    2. Relevant equations


    and solve for velocity of He, however, i am not sure what numbers to plug in for the mass.

    3. The attempt at a solution

    I filled everything in but the masses, I know that oxygen is diatomic, or O2, but what does that mean I put in for the mass? Do I need to use the mass numbers by looking at a periodic table?
  2. jcsd
  3. Nov 27, 2007 #2


    User Avatar

    Staff: Mentor

Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Mixture of Gases
  1. Mixture formula (Replies: 7)

  2. Heating the mixture (Replies: 4)