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Activity. Activity. ΔG mix = x A . (μ o A + RT . ln a A ) + x B . (μ o B + RT . ln a B ). μ o B. x A . μ o A + x B . μ o B. ∆ a G. RT . ln a B. μ B = μ o B + RT . ln a B. x A . RT . ln a A + x B . RT . ln a B. μ o A. ΔG mix = x A . μ A + x B . μ B. RT . ln a A.
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Activity ΔGmix = xA.(μoA + RT.ln aA) + xB.(μoB + RT.ln aB) μoB xA.μoA + xB.μoB ∆aG RT.ln aB μB = μoB + RT.ln aB xA.RT.ln aA + xB.RT.ln aB μoA ΔGmix = xA.μA + xB.μB RT.ln aA μoA + RT.ln aA = μA xB xA A B composition
Activity Co And Sil Ky Qz ∆aG Al2O3 SiO2 Bulk
Activity Stable assemblage: Ky + Qz Co And Sil Ky Qz ∆aG Al2O3 SiO2 Bulk
Activity Stable assemblage: Ky + Qz Co And RT ln(aCo) Sil Ky Qz ∆aG Al2O3 SiO2 Bulk
Activity Co And Sil Ky Qz ∆aG Al2O3 SiO2 Bulk
Activity Co And Sil Ky Qz ∆aG RT ln(aQz) Qz* Al2O3 SiO2 Bulk
Activity Stable assemblage: Co + Qz* Co And Sil Ky Qz ∆aG RT ln(aQz) Qz* Al2O3 SiO2 Bulk
Activity Stable assemblage: Co + Qz* Co And Sil Ky Qz RT ln(aKy) ∆aG RT ln(aQz) Qz* Al2O3 SiO2 Bulk
Defining the Activity of H2O In THERIN: 500 2000 1 SI(160)AL(60)NA(10)K(10)H(100)O(?) * In database: add new phase STEAM06 H(2)O(1) H2O h2o ST CP1 COM STEAM[1] 0.6 Keywords + empty line "combination" activity There's always an easy solution to every human problem -- neat, plausible, and wrong. (Henry Louis Mencken)
Defining the Activity of H2O Run theriak theriak ------------------- database definition ------------------- Enter [ "?" | CR | "files" | database filename ] <JUN92.bs>? --------------------------- define type of calculations --------------------------- Enter [ "?" | CR | "no" | "bin" | "loop" | filename ] <no>?
Defining the Activity of H2O phase N mol% x ----- - ---- - 0 1 FSP_Ab 6.425745 4.107857 ALBITE 0.972798 K-FELDSPAR 0.027202 0 2 WHITE_MICA_Ms 13.574255 8.677762 MUSCOVITE 0.723812 PARAGONITE 0.276188 [Si(Z)] = 0.750000 [Al(Z)] = 0.250000 15 0 A-QUARTZ 93.574255 59.820239 23 0 ANDALUSITE 6.425745 4.107857 32 0 STEAM06 36.425745 23.286285 P 26 ALBITE 0.00000E+00 1.56423E+02 9.75960E-01 P 27 K-FELDSPAR 0.00000E+00 4.54481E+03 4.93115E-01 P 28 MUSCOVITE 0.00000E+00 1.84356E+03 7.50668E-01 P 29 PARAGONITE 0.00000E+00 1.99979E+03 7.32644E-01 P 30 JADEITE 0.00000E+00 2.18747E+04 3.32759E-02 P 31 STEAM 0.00000E+00 3.28369E+03 6.00000E-01 P 33 OXYGEN 0.00000E+00 4.89269E+05 8.80278E-34 S 63 FSP 0.00000E+00 0.00000E+00 1.00000E+00 9.7280E-01 2.7202E-02 S 67 WHITE MICA 0.00000E+00 -1.13687E-13 1.00000E+00 7.2381E-01 2.7619E-01 exit THERIAK CPU time: 0h 00m 00.04s
Defining the Activity of H2O Run domino JUN92.bs TC 500 900 P 1000 13000 . 1 Run guzzler Run explot
Defining the Activity of H2O a(H2O) = 0.6
Defining the Activity of H2O a(H2O) = 1