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Semiempirical van der Waals/Cahn–Hilliard theory: Size dependence of the Tolman length (1998)

Gránásy, László

College Park, Md. : American Institute of Physics (AIP)

The Journal of Chemical Physics 109 (1998), S. 9660-9663

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ISSN: 1089-7690

Source: AIP Digital Archive

Topics: Physics , Chemistry and Pharmacology

Notes: The interfacial density profiles, pressure tensor, and Tolman-length δT are determined for the critical droplets of nonane in the framework of the semiempirical van der Waals/Cahn–Hilliard theory. It is shown that the Tolman's length is strongly size dependent, and tends to a negative value for large drops; indicating that Tolman's approximation for the curvature dependence of the interfacial free-energy γ(approximate)γ∞/(1+2δT,eq/R) based on the equilibrium values δT,eq, and γ∞, is inaccurate for typical liquid nuclei. © 1998 American Institute of Physics.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.477634

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