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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


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    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}
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