About: Debye–Hückel theory

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The Debye–Hückel theory was proposed by Peter Debye and Erich Hückel as a theoretical explanation for departures from ideality in solutions of electrolytes and plasmas. It is a linearized Poisson–Boltzmann model, which assumes an extremely simplified model of electrolyte solution but nevertheless gave accurate predictions of mean activity coefficients for ions in dilute solution. The Debye–Hückel equation provides a starting point for modern treatments of non-ideality of electrolyte solutions.

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rdfs:label	Teoria de Debye-Hückel (ca) Debye-Hückel-Theorie (de) Teoría de Debye-Hückel (es) Debye–Hückel theory (en) Teori Debye–Hückel (in) Teoria di Debye-Hückel (it) Théorie de Debye-Hückel (fr) Debye-Hückeltheorie (nl) Теория Дебая — Хюккеля (ru)
rdfs:comment	La teoria de Debye-Hückel sobre la dissociació dels electròlits, proposada pels químics Peter Debye i Erich Hückel, pretén donar solució als problemes que planteja la teoria d'Arrhenius. (ca) Die Debye-Hückel-Theorie (nach Peter Debye und Erich Hückel) beschreibt in der Elektrochemie die elektrostatischen Wechselwirkungen von Ionen in Elektrolytlösungen. Diese Coulombschen Anziehungs- und Abstoßungskräfte führen zu einer Abweichung der Aktivität (wirksame Konzentration, früher „aktive Masse“) der Ionensorte in Abhängigkeit von ihrer molaren Konzentration gemäß . Die Debye-Hückel-Theorie liefert Gleichungen, mit denen der individuelle dimensionslose Aktivitätskoeffizient (teilweise auch als geschrieben) in Abhängigkeit von Konzentration, Temperatur und Dielektrizitätskonstante des Lösungsmittels berechnet werden kann. (de) La teoría de Debye-Hückel fue propuesta por Peter Debye y Erich Hückel como una explicación teórica de las desviaciones de la idealidad en soluciones de electrolitos y plasmas. Es un modelo linealizado de Poisson-Boltzmann, que asume un modelo extremadamente simplificado de solución electrolítica pero, sin embargo, dio predicciones precisas de los coeficientes de actividad promedio para iones en solución diluida. La ecuación de Debye-Hückel proporciona un punto de partida para los tratamientos modernos de la no idealidad de las soluciones de electrolitos. (es) The Debye–Hückel theory was proposed by Peter Debye and Erich Hückel as a theoretical explanation for departures from ideality in solutions of electrolytes and plasmas. It is a linearized Poisson–Boltzmann model, which assumes an extremely simplified model of electrolyte solution but nevertheless gave accurate predictions of mean activity coefficients for ions in dilute solution. The Debye–Hückel equation provides a starting point for modern treatments of non-ideality of electrolyte solutions. (en) La théorie de Debye-Hückel est un modèle destiné à expliquer l'écart à l'idéalité en solution, à travers le calcul des coefficients d'activité dans l'échelle des concentrations. Proposé par Peter Debye et Erich Hückel en 1923, cette théorie est basée sur le modèle de l'atmosphère ionique. L'écart à l'idéalité y est vu comme la conséquence de l'interaction électrostatique entre les sphères de solvatation ioniques. (fr) Teori Debye–Hückel diusulkan oleh Peter Debye dan Erich Hückel sebagai penjelasan teoritis terhadap perubahan idealisme dalam larutan elektrolit dan plasma. Teori ini merupakan bentuk linear dari , yang mengasumsikan model larutan elektrolit yang sangat disederhanakan namun tetap memberikan prediksi koefisien aktivitas rata-rata yang akurat untuk ion dalam larutan encer. memberikan titik awal bagi perlakuan modern terhadap non-idealitas larutan elektrolit. (in) La teoria di Debye-Hückel (elaborata da Peter Debye ed Erich Hückel nel 1923) ha lo scopo di spiegare le deviazioni dall'idealità delle proprietà chimico-fisiche associate alle specie chimiche immerse in soluzioni elettrolitiche. Viene utilizzata per predire i valori dei coefficienti di attività degli ioni in soluzioni diluite. Per gli elettroliti, a differenza delle soluzioni di non-elettroliti, la deviazione dall'idealità è particolarmente elevata anche in soluzioni con molalità 10−3 mol kg−1. (it) De Debye-Hückeltheorie is een theorie uit de elektrochemie en vormt een theoretische verklaring van het niet-ideaal gedrag van elektrolytoplossingen. Hoewel er wordt gebruikgemaakt van een relatief simpel model van de realiteit is de theorie in staat om in een verdunde oplossing de activiteitscoëfficiënten van de aanwezige ionen nauwkeurig te voorspellen. Het model is vernoemd naar zijn ontwikkelaars, Peter Debye en Erich Hückel. Het voornaamste en meest bekende resultaat is de limietwet van Debye-Hückel: of, bij een meer exacte afleiding: (nl) Тео́рия си́льных электроли́тов Деба́я — Хю́ккеля — предложенная Петером Дебаем и Эрихом Хюккелем в 1923 году статистическая теория плазмы и разбавленных растворов сильных электролитов, согласно которой каждый ион действием своего электрического заряда поляризует окружение и образует вокруг себя некоторое преобладание ионов противоположного знака — так называемое ионное облако. (ru)
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dcterms:subject	Thermodynamic models Peter Debye Electrochemistry Equilibrium chemistry
Wikipage page ID	7729301 (xsd:integer)
Wikipage revision ID	1122515555 (xsd:integer)
Link from a Wikipage to another Wikipage	Electrolyte Electrostriction Boltzmann constant Peter Debye Viscosity Davies equation Debye–Hückel equation Electrophoretic Electrostatic Activity (chemistry) Conductivity (electrolytic) Coulomb's law Electric field Electric potential energy Concentration Equilibrium constant Colligative properties Ideal solution Poisson's equation Superposition principle Activity coefficient Thermodynamic models Ionic atmosphere Ionic radius Ionic strength Peter Debye Alternating current Erich Hückel Nitrate Thermodynamics Helmholtz equation Ion association Taylor series Solute Electrochemistry Equilibrium chemistry Charge density Chemistry Lars Onsager Bjerrum length Strong electrolyte Relative permittivity Boltzmann distribution Plasma (physics) Polarizability Spherical coordinates Oversimplification Niels Bjerrum Dielectric constant Poisson–Boltzmann equation Solvation Solvation shell Specific ion interaction theory Point charge Electrically neutral Freezing point depression Analytical solution Dipolar Pitzer equation Debye–Hückel limiting law Kohlrausch's Law
sameAs	Debye–Hückel theory Debye–Hückel theory Debye–Hückel theory Debye–Hückel theory Debye–Hückel theory Debye–Hückel theory Debye–Hückel theory

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