깁스 자유 에너지(Gibbs free energy) 또는 깁스 에너지(영어: Gibbs energy)는 일정한 압력과 온도를 유지하는 조건 아래 열역학적 계에서 뽑을 수 있는 에너지다. 흔히 대기 따위와 상호 작용으로 일정한 압력과 온도가 유지되므로, 화학 반응 등을 다룰 때 널리 쓴다.

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dbpedia-owl:abstract
  • Van een thermodynamisch systeem bij constante temperatuur is de vrije energie de toestandsfunctie die spontaan, dus langs onomkeerbare weg, naar een minimum streeft als het systeem nog niet in evenwicht verkeert. Het minimum wordt bereikt bij die evenwichtstoestand en is dus een evenwichtswaarde. Alle evenwichtswaarden van de vrije energie kunnen het best beschreven worden als functie van de 'natuurlijke variabelen'. De overige relevante toestandsvariabelen zijn dan de afgeleiden van de vrije energie naar de natuurlijke variabelen.Er zijn twee versies van de vrije energie, die van Hermann von Helmholtz en die van Josiah Willard Gibbs. De eerste heeft als natuurlijke variabelen V en T, de tweede p en T.
  • 깁스 자유 에너지(Gibbs free energy) 또는 깁스 에너지(영어: Gibbs energy)는 일정한 압력과 온도를 유지하는 조건 아래 열역학적 계에서 뽑을 수 있는 에너지다. 흔히 대기 따위와 상호 작용으로 일정한 압력과 온도가 유지되므로, 화학 반응 등을 다룰 때 널리 쓴다.
  • Gibbs serbest enerjisi entalpiden, entropi ve mutlak sıcaklığın çarpımının çıkarılmasıyla elde edilen termodinamik bir değişkendir. Genel olarak kimyasal bir reaksiyonun enerji potansiyelinin işe dönüştürülebilmesiyle ilgilidir.
  • Volná entalpie, jinak řečeno Gibbsova volná energie či jen Gibbsova energie nebo Gibbsova funkce, je jedním z termodynamických potenciálů, tedy extenzivní stavová termodynamická veličina s rozměrem energie. Gibbsova energie je stavová funkce, která je zpravidla značená písmenem G, která popisuje chemické děje za podmínek konstantního tlaku, konstantní teploty a konstantních látkových množství, kdy entropie jako kritérium samovolnosti děje nevyhovuje. Samotná rovnice vyjadřující Gibbsovu energii byla postulována v roce 1875, kdy J. W. Gibbs odvodil novou funkci G.Přirozenými proměnnými jsou pro Gibbsovu energii termodynamická teplota, tlak a látkové množství.Vzhledem k tomu, že je vhodná pro posuzování termodynamické rovnováhy soustav při konstantním tlaku a teplotě, je často využívaná pro charakteristiku přirozeného směru chemických reakcí - které zpravidla probíhají při atmosférickém tlaku a teplotě prostředí.
  • In thermodynamics, the Gibbs free energy (IUPAC recommended name: Gibbs energy or Gibbs function; also known as free enthalpy to distinguish it from Helmholtz free energy) is a thermodynamic potential that measures the "usefulness" or process-initiating work obtainable from a thermodynamic system at a constant temperature and pressure (isothermal, isobaric). Just as in mechanics, where potential energy is defined as capacity to do work, similarly different potentials have different meanings. The Gibbs free energy (SI units J/mol) is the maximum amount of non-expansion work that can be extracted from a closed system; this maximum can be attained only in a completely reversible process. When a system changes from a well-defined initial state to a well-defined final state, the Gibbs free energy ΔG equals the work exchanged by the system with its surroundings, minus the work of the pressure forces, during a reversible transformation of the system from the same initial state to the same final state.Gibbs energy (also referred to as ∆G) is also the chemical potential that is minimized when a system reaches equilibrium at constant pressure and temperature. Its derivative with respect to the reaction coordinate of the system vanishes at the equilibrium point. As such, it is a convenient criterion of spontaneity for processes with constant pressure and temperature.The Gibbs free energy, originally called available energy, was developed in the 1870s by the American mathematician Josiah Willard Gibbs. In 1873, Gibbs described this "available energy" asthe greatest amount of mechanical work which can be obtained from a given quantity of a certain substance in a given initial state, without increasing its total volume or allowing heat to pass to or from external bodies, except such as at the close of the processes are left in their initial condition.The initial state of the body, according to Gibbs, is supposed to be such that "the body can be made to pass from it to states of dissipated energy by reversible processes." In his 1876 magnum opus On the Equilibrium of Heterogeneous Substances, a graphical analysis of multi-phase chemical systems, he engaged his thoughts on chemical free energy in full.
  • L'energia libera di Gibbs (o entalpia libera) è una funzione di stato usata in termodinamica e termochimica per rappresentare l'energia libera nelle trasformazioni isotermobariche (a cui appartengono la maggior parte delle reazioni chimiche), dove può determinarne la spontaneità.
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  • Énergie libre, enthalpie libre
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  • Énergie libre, enthalpie libre
  • Énergie libre, enthalpie libre
dcterms:subject
rdfs:comment
  • 깁스 자유 에너지(Gibbs free energy) 또는 깁스 에너지(영어: Gibbs energy)는 일정한 압력과 온도를 유지하는 조건 아래 열역학적 계에서 뽑을 수 있는 에너지다. 흔히 대기 따위와 상호 작용으로 일정한 압력과 온도가 유지되므로, 화학 반응 등을 다룰 때 널리 쓴다.
  • Gibbs serbest enerjisi entalpiden, entropi ve mutlak sıcaklığın çarpımının çıkarılmasıyla elde edilen termodinamik bir değişkendir. Genel olarak kimyasal bir reaksiyonun enerji potansiyelinin işe dönüştürülebilmesiyle ilgilidir.
  • L'energia libera di Gibbs (o entalpia libera) è una funzione di stato usata in termodinamica e termochimica per rappresentare l'energia libera nelle trasformazioni isotermobariche (a cui appartengono la maggior parte delle reazioni chimiche), dove può determinarne la spontaneità.
  • Van een thermodynamisch systeem bij constante temperatuur is de vrije energie de toestandsfunctie die spontaan, dus langs onomkeerbare weg, naar een minimum streeft als het systeem nog niet in evenwicht verkeert. Het minimum wordt bereikt bij die evenwichtstoestand en is dus een evenwichtswaarde. Alle evenwichtswaarden van de vrije energie kunnen het best beschreven worden als functie van de 'natuurlijke variabelen'.
  • Volná entalpie, jinak řečeno Gibbsova volná energie či jen Gibbsova energie nebo Gibbsova funkce, je jedním z termodynamických potenciálů, tedy extenzivní stavová termodynamická veličina s rozměrem energie. Gibbsova energie je stavová funkce, která je zpravidla značená písmenem G, která popisuje chemické děje za podmínek konstantního tlaku, konstantní teploty a konstantních látkových množství, kdy entropie jako kritérium samovolnosti děje nevyhovuje.
  • In thermodynamics, the Gibbs free energy (IUPAC recommended name: Gibbs energy or Gibbs function; also known as free enthalpy to distinguish it from Helmholtz free energy) is a thermodynamic potential that measures the "usefulness" or process-initiating work obtainable from a thermodynamic system at a constant temperature and pressure (isothermal, isobaric). Just as in mechanics, where potential energy is defined as capacity to do work, similarly different potentials have different meanings.
rdfs:label
  • Enthalpie libre
  • Energia de Gibbs
  • Energia libera di Gibbs
  • Energia livre de Gibbs
  • Energía de Gibbs
  • Entalpia swobodna
  • Gibbs free energy
  • Gibbs serbest enerjisi
  • Gibbs-Energie
  • Gibbsova volná energie
  • Vrije energie
  • Свободна енергия на Гибс
  • Энергия Гиббса
  • 기브스 자유 에너지
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