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Homework Help: Thermodynamics Help

  1. Apr 7, 2008 #1
    1. The problem statement, all variables and given/known data


    The equilibrium vapor pressures of liquid gallium are


    T(K) 1302 1427 1623
    p(torr) 0.01 0.1 1.0


    a-Calculate the enthalpy, entropy and Gibbs energy changes for the process
    b-Calculate the standard enthalpy, entropy, and Gibbs energy changes for the vapozation of liquid gallium at 1427 K. Under standard conditions the pressure of the gallium is 1 bar. Will liquid gallium 1427 K spontaneously form vapor with a pressu of 1 bar?

    [tex]
    Ga(l) \rightarrow Ga(g, 0.1 torr)
    [/tex]

    at 1427 K.

    Heres what I derived so far

    [tex]
    dG=Vdp
    dG=\frac{RT}{p}dp
    \Delta G=RTln\frac{p_2}{p_1}
    [/tex]

    I'm not sure how to get [tex]p_1[/tex] to solve for [tex]\Delta G[/tex]
     
    Last edited: Apr 7, 2008
  2. jcsd
  3. Apr 9, 2008 #2
    I have solved this problem. It was quite simple actually.
    If anyone wants me to post the solution, just let me know.
     
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