Energetics of Open Systems and Chemical Potential From Micro-Dynamics Viewpoints

Details Energetics of Open Systems and Chemical Potential From Micro-Dynamics Viewpoints Energetics of Open Systems and Chemical Potential From Micro-Dynamics Viewpoints

2000-03-21

arxiv.org/abs/cond-mat/0003348v1

Physics

Condensed Matter

Statistical Mechanics

7 pages, 1 figure

Scientific paper

10.1143/JPSJ.69.2455

We present the energetic aspect of open systems which may exchange particles with their environments. Our attention shall be paid to the scale that the motion of the particles is described by the classical Langevin dynamics. Along a particular realization of the stochastic process, we study the energy transfer into the open system from the environments. We are able to clarify how much energy each particle carries when it enters or leaves the system. On the other hand, the chemical potential should be considered as the concept in macro scale, which is relevant to the free energy potential with respect to the number of particles. Keywords: open systems, stochastic energetics, chemical potential

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