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Entropy -- prove it increases for irreversible process

  1. May 18, 2015 #1
    hi all,

    upload_2015-5-20_2-14-30.png
    this is Entropy Rate Balance for Control Volumes.

    in the case of throttling process,


    upload_2015-5-20_2-17-43.png .


    throttling process is irreversible process, so (S2- S1) must be greater than zero.

    what i want to know is to prove that (s2-s1) is greater than zero.

    Thank you in advance.
     

    Attached Files:

  2. jcsd
  3. May 18, 2015 #2
    I thought we had already answered this question in the following thread: https://www.physicsforums.com/threads/throttling-process.814170/#post-5112310. Were you dissatisfied with the explanation given in that thread? If so, what was it that you disagree with?

    Chet
     
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