SCHERLIS PEREL Damian Ariel
congresos y reuniones científicas
Classical Thermodynamics: How Small Can It Go?
DAMIAN A SCHERLIS
Seminario; Invited Seminar, THEOS; 2014
Institute of Materials Science and Engineering, School of Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL)
Classical thermodynamics is assumed to be valid up to a certainlength-scale,below which the discontinuous nature of matter becomes manifest.In particular, this must be the case for the description of the vaporpressureand of the surface tension based on the Kelvin and Tolmanequations. We perform grand canonical moleculardynamics simulations of water nanodroplets to show that the applicabilityof these equations extend to unexpectedly small lengths, of only 1 nm,where the inhomogeneities in the density of matter occurwithin spatial lengths of the same order of magnitude as the size of thedroplet.