Statistical model for ensembles undergoing phase transformations

Abstract

A statistical model delivering average equilibrium concentrations and indications for the time evolution of ensembles of phase transforming nanoparticles, showing fluctuations, gives clues for a new approach. It is shown that the temporal evolution of transformation of the ensemble depends on the distinguishability of the particles. However, the equilibrium configuration of fluctuating ensembles does not depend on the distinguishability of the particles. The outcome of the presuppositionless statistical fluctuation model is the proof that any fluctuations connected to phase transformations occur in the minimum of the free enthalpy. Additionally, the analysis allows drafting a new fluctuation condition for ensembles.