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!

Why define entropy with heat instead of work?

  1. Jan 14, 2016 #1
    From what I understand, in the Carnot cycle summing qi/Ti for each step results in zero, thus indicating a new state function, entropy = qrev/T. But since dE = 0 = q+w, then q = -w, and looking at the equations derived from the cycle summing wi/Ti for each step should also result in zero. So why can't one also define entropy as wrev/T?
     
  2. jcsd
  3. Jan 14, 2016 #2
    Suppose you heat a body without doing any work. Does its entropy change?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Why define entropy with heat instead of work?
  1. Heat and Entropy (Replies: 3)

Loading...