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

Exergy and Gibbs free energy

  1. May 31, 2014 #1
    Hi. I have two questions:

    1) Is -ΔG the amount of useful work a system can do while the pressure and temperature of the surroundings are constant?

    2) Is exergy = -ΔG only if the pressure and temperature of the system and surroundings is constant?

    thanks
     
  2. jcsd
  3. May 31, 2014 #2
    What is exergy?
     
  4. May 31, 2014 #3
    It's defined as the theoretical maximum work a system can do when moving towards thermal equilibrium.

    I'm just unsure about the specifics behind its definition.

    http://en.wikipedia.org/wiki/Exergy
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Exergy and Gibbs free energy
  1. Gibbs Free energy change (Replies: 15)

  2. Gibbs free energy (Replies: 1)

Loading...