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Liquid-Solid Cooling Curves

  1. Mar 19, 2006 #1
    In a cooling curve of a single substance there is a thermal arrest point where the liquid turns into solid. My laboratory manual mentions that in a cooling curve containing two liquids (A + B), in addition to the arrest there is a second point called a "break". It says the point at which solid A forms is called the break and the point at which solid A and B form together is the arrest. My physical chemistry textbook does not mention the break. My question is: what does the break point look like on a cooling curve? I need to be able to identify it.
  2. jcsd
  3. Mar 20, 2006 #2


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    This link might help.
    http://web.njit.edu/~grow/phasedigram/BiphaseDig.html" [Broken]
    Last edited by a moderator: May 2, 2017
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