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

Thermodynamics: internal energy

  1. Oct 14, 2013 #1
    internal energy U=q+W

    so far we've only been substituting -PV into W but i just wanted to be sure that the W is the total work and not just the work done by the pressure right?
  2. jcsd
  3. Oct 14, 2013 #2


    User Avatar

    Staff: Mentor

    Right. Another common kind of work is electrical, when looking at the thermodynamics of batteries and fuel cells, for instance. You will often see fomulations of the kind
    W = -P dV + W_\text{other}
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook