Vanishing linear term in chemical potential difference in volume term of work of critical nucleus formation for phase transition without volume change
Mori, Atsushi · Suzuki, Yoshihisa
Original · EN
A question is given on the form n(μβ-μα) for the volume term of work of formation of critical nucleus. Here, n is the number of molecule undergone the phase transition, μ denotes the chemical potential, α and β represent the parent and nucleating phases, respectively. In this paper we concentrate phase transition without volume change. We have calculated the volume term in terms of the chemical potential difference μre-μeq for this case. Here, μre is the chemical potential of the reservoir and μeq that at the phase transition. We have Wvol = -[(κβ-κα)/(2veq²)] (μre-μeq)² Vβ with κ denoting the isothermal compressibility, veq being the molecular volume at the phase transition, Vβ the volume of the nucleus.
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