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Phase State Change Questions

  1. Dec 15, 2013 #1
    1. The problem statement, all variables and given/known data

    How would the state change graph of some matter undergoing deposition look like?

    2. The attempt at a solution

    I would assume that since it is undergoing deposition, it would just be a slope from the gaseous state to the liquid state. However I am not sure of this? How would one then calculate the heat released during this process, is it at all possible?
     
  2. jcsd
  3. Dec 15, 2013 #2

    Borek

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    Staff: Mentor

    You mean temperature vs time plot?
     
  4. Dec 15, 2013 #3
    Yes. Precisely a heat added vs. temp plot.
     
  5. Jan 6, 2014 #4
    Ok. So this is an example of a heat added vs. temp diagram of a sublimation phase change from my workbook.

    They ask to choose the one on the left(a) or right (b).

    I think it is (b) because during the phase change, the temp would continually rise, no?
     

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  6. Jan 7, 2014 #5

    Borek

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    Google for thermogravimetric curves/analysis.
     
  7. Jan 7, 2014 #6

    Borek

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    Staff: Mentor

    So you mean water boils between - say - 90 and 110°C? I was always taught water boils at 100.
     
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