翻訳と辞書 Words near each other ・ Workbench (woodworking) ・ Workbench Songs ・ Workbook ・ Workbook (album) ・ Workbook Project ・ Workcell ・ Work Bitch ・ Work breakdown structure ・ Work Bus ・ Work Capability Assessment ・ Work Capacity Test ・ Work card ・ Work Channel ・ Work Club ・ Work college ・ Work content ・ Work Diva ・ Work domain analysis ・ Work Done on Premises ・ Work Drugs ・ Work engagement ・ Work ethic ・ Work etiquette ・ Work experience ・ Work Experience (film) ・ Work Experience (The Inbetweeners) ・ Work Flow Language ・ Work for All ・ Work for hire ・ Work for Love Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Work content ： ウィキペディア英語版 Work content In thermodynamic analysis of chemical reactions, the term free energy denotes either of two related concepts of importance expressing the total amount of energy which is used up or released during a chemical reaction. Both attempt to capture that part of the total energy of a system which is available for "useful work" and is hence not stored in "useless random thermal motion". As a system undergoes changes, its free energy will decrease. When a system of molecules undergoes change, whether chemical reaction or changes in physical states such as phase changes, there are two tendencies driving the changes: *Free Energy tends to ''decrease'', *Entropy tends to ''increase''. If $U$ represents the internal energy, $T$ the temperature, and $S$ the entropy, these two tendencies can be combined by stating that the expression :$A=U\; -\; TS$, the Helmholtz free energy function (named after Hermann von Helmholtz) tends to decrease. Strictly, this is only true in situations where the volume is constant, as in sealed containers. The change in Helmholtz free energy is equal to the maximum work accompanying the process of the system occurring at constant volume :$\backslash delta\; W\; =\; dA$ At constant temperature :$\backslash delta\; W\; =\; dA\; =\; dU\; -\; T\backslash ,dS$ If the pressure is constant, as in open containers, the enthalpy $H\; =\; U\; +\; PV$ (where $P$ represents the pressure and $V$ represents the volume) replaces the energy, and thus the quantity that must be minimized is :$G\; =\; H\; -\; TS\; =\; U\; +\; PV\; -\; TS$, the Gibbs free energy function (named after Willard Gibbs) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Work content」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.