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!

Can things still gain heat(maybe till a point), if they are not alowed to expand?

  1. Aug 26, 2011 #1
  2. jcsd
  3. Aug 26, 2011 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Why do you think they shouldn't.

    P.S. Take a look at this FAQ for a clarification of terminology and why it is wrong to say something "gains heat": https://www.physicsforums.com/showthread.php?t=511174 [Broken]
    Last edited by a moderator: May 5, 2017
  4. Aug 26, 2011 #3


    User Avatar
    Science Advisor
    Homework Helper

    Welcome to PF!

    Hi AgentPancake! Welcome to PF! :smile:

    If you put pressure on a fixed volume of gas, won't it heat up? :wink:
  5. Aug 26, 2011 #4


    User Avatar
    Science Advisor

    I think he's talking about heat-expansion and how a body that's not allowed to expand still get hotter.

    The trick here is that all objects are at least somewhat compressible. Increasing temperature without allowing to expand is equivalent to heating the object up and then compressing it to original size. (In terms of forces involved.)
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook