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Theromdoynamics-TV diagram & Heat Engine

  1. Nov 9, 2009 #1
    1. The pressure is constant at 1Mpa how come it goes up after touching saturation vapor line.?Shouldn't it remain constant throughout?

    Please look at the Tv diagram below:
    http://www.ent.ohiou.edu/~thermo/Intro/Chapt.1_6/ideal_gas/tv_ideal.gif [Broken]

    2. Why quasi-static equilibrium is necessary for engine efficiency?

    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Nov 9, 2009 #2
    1. Where does it say the pressure is increasing?
    2. A real process is not quasi static. It's an assumption made to make all the calculations easier.

    Btw is this homework.
  4. Nov 9, 2009 #3


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    That graph is showing a temperature rise after it leaves the saturated-mixture region, the pressure is still constant.

    Last edited by a moderator: May 4, 2017
  5. Nov 10, 2009 #4
    xxChrisxx: no its not a homework question.

    StewartCs:thanks a bunch!
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