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!

Psi to Newtons

  1. Dec 26, 2007 #1
    Hello, is it possible to figure out how much force in newtons is created when a compressed gas expands?
    Last edited: Dec 26, 2007
  2. jcsd
  3. Dec 26, 2007 #2

    Dr Transport

    User Avatar
    Science Advisor
    Gold Member

    Pressure is force per unit area.....What is the pressure drop and the volume expansion???
  4. Dec 26, 2007 #3

    Shooting Star

    User Avatar
    Homework Helper

    Without more details, no.
    Last edited: Dec 26, 2007
  5. Dec 26, 2007 #4
    Pressure drop? Not sure what that is :( Volume expansion is twice the original volume
  6. Dec 26, 2007 #5
    More or less what he said.

    When a gas is contained by some closed surface, the surface doesn't move because there is a force balance between the inside and ouside of the container. If you want, you could calculae the hydrostatic force exerted by the gas by integrating the pressure over the surface (which usually just amounts to multiplying the pressure by the area). But without a lot more details, it isn't clear how one would calculate the force on an expanding gas container. If it's a simple system like a piston, then the problem is fairly easy. For more complex systems...well, you'd have to give me a few more specific details before I could solve the problem.
  7. Dec 26, 2007 #6

    Shooting Star

    User Avatar
    Homework Helper

  8. Dec 26, 2007 #7


    User Avatar

    Staff: Mentor

    Please don't multi-post.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Psi to Newtons
  1. PSI Calculations (Replies: 3)