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!

Gas pressure in thermometer

  1. Dec 5, 2005 #1
    The gas in a constant-volume gas thermometer has a pressure of 87.0kPa at 104*C.

    (a)what is the pressure of the gas at 50.0*C?
    for this i used the eqn of (87/104)(104-50) like it said in the book and still didnt get the answer right.
  2. jcsd
  3. Dec 5, 2005 #2


    User Avatar

    use P1/T1 = P2/T2 ...solve for P2

    = (P1*T2)/(T1) = P2

    don't forget to convert C to Kelvins.
  4. Dec 5, 2005 #3
    but y would i convert to kelvins?
  5. Dec 5, 2005 #4
    but y would i convert to kelvins?
  6. Dec 5, 2005 #5


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    "Why Kelvin?" Because there is no temperature scale other than the "absolute," or "thermodynamic" temperature scale, be it Kelvin or Rankine.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Gas pressure in thermometer
  1. Gas Thermometers (Replies: 2)