Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Understanding Ideal Gas Law

  1. Sep 29, 2010 #1
    I'm curious from a lab sort of perspective, how does one keep a gas at a constant temperature yet decrease both pressure and density? Like how could I reduce the pressure of argon gas with the gas kept at room temperature? Put it in a vacuum larger than the space it normally occupies or something? How is that constructed?
  2. jcsd
  3. Sep 30, 2010 #2
    Yes, you have to change the volume (or the amount of argon). Then you may have to wait for thermal equilibrium.
    What about a cylinder with a moving piston?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook