{ "id": "1512.08744", "version": "v1", "published": "2015-12-29T18:22:16.000Z", "updated": "2015-12-29T18:22:16.000Z", "title": "Determination of Nonequilibrium Temperature and Pressure using Clausius Equality in a State with Memory: A Simple Model Calculation", "authors": [ "P. D. Gujrati" ], "comment": "5 pages, 4 figures", "categories": [ "cond-mat.stat-mech" ], "abstract": "Use of the extended definition of heat dQ=deQ+diQ converts the Clausius inequality dS greater than or equal to deQ/T0 into an equality dS=dQ/T, which is applied to the exact quantum evolution of a 1-dimensional ideal gas free expansion. In a first ever calculation of its kind in an expansion which retains the memory of initial state, we determine the nonequilibrium temperature T and pressure P, which are then compared with the ratio P/T obtained by an independent method to show the consistency of the nonequilibrium formulation. We find that the quantum evolution by itself cannot eliminate the memory effect.", "revisions": [ { "version": "v1", "updated": "2015-12-29T18:22:16.000Z" } ], "analyses": { "keywords": [ "simple model calculation", "nonequilibrium temperature", "clausius equality", "determination", "clausius inequality ds greater" ], "note": { "typesetting": "TeX", "pages": 5, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv151208744G" } } }