Amagat's law or the Law of Partial Volumes of 1880 describes the behaviour and properties of mixtures of ideal (as well as some cases of non-ideal) gases. Of use in chemistry and thermodynamics, Amagat's law states that the extensive volume V = N·v of a gas mixture is equal to the sum of volumes Vi of the K component gases, if the temperature T and the pressure p remain the same: This is the experimental expression of volume as an extensive quantity. It is named after Emile Amagat. are considered to be the partial volumes of components in the gaseous mixture, then the total volume and

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  • Amagat's law or the Law of Partial Volumes of 1880 describes the behaviour and properties of mixtures of ideal (as well as some cases of non-ideal) gases. Of use in chemistry and thermodynamics, Amagat's law states that the extensive volume V = N·v of a gas mixture is equal to the sum of volumes Vi of the K component gases, if the temperature T and the pressure p remain the same: This is the experimental expression of volume as an extensive quantity. It is named after Emile Amagat. According to Amagat’s law of partial volume, the total volume of a non-reacting mixture of gases at constant temperature and pressure should be equal to the sum of the individual partial volumes of the constituent gases. So if are considered to be the partial volumes of components in the gaseous mixture, then the total volume would be represented as: Both Amagat's and Dalton's Laws predict the properties of gas mixtures. Their predictions are the same for ideal gases. However, for real (non-ideal) gases, the results differ. Dalton's Law of Partial Pressures assumes that the gases in the mixture are non-interacting (with each other) and each gas independently applies its own pressure, the sum of which is the total pressure. Amagat's Law assumes that the volumes of the component gases (again at the same temperature and pressure) are additive; the interactions of the different gases are the same as the average interactions of the components. The interactions can be interpreted in terms of a second virial coefficient, B(T), for the mixture. For two components, the second virial coefficient for the mixture can be expressed as: where the subscripts refer to components 1 and 2, the X's are the mole fractions, and the B's are the second virial coefficients. The cross term, B1,2, of the mixture is given by: (Dalton's Law) and (Amagat's Law). When the volumes of each component gas (same temperature and pressure) are very similar, then Amagat's law becomes mathematically equivalent to Vegard's law for solid mixtures. (en)
  • Das Gesetz von Amagat besagt, dass falls verschiedene Gase (Anzahl ) mit Volumina , alle mit dem gleichen Druck (und gleicher Temperatur ) gemischt werden, das Gemisch bei einem Volumen den Druck p hat („ideale Mischungen“ von Gasen). Das Gesetz ist eine Folge der Zustandsgleichung idealer Gase. Dieses Gesetz ist benannt nach Emile Hilaire Amagat (1841–1915), einem französischen Physiker und Hochdruckexperten, der an der Universität von Lyon lehrte. (de)
  • La ley de Amagat o ley de los volúmenes parciales establece que en una mezcla de gases, cada gas ocupa su volumen como si los restantes gases no estuvieran presentes. El volumen específico de un determinado gas en una mezcla se llama volumen parcial (v). El volumen total de la mezcla se calcula simplemente sumando los volúmenes parciales de todos los gases que la componen. Esta es la expresión experimental del volumen como una magnitud extensiva. La ley honra al físico francés Emile Amagat (1841-1915), que fue quién la enunció por vez primera en 1880. (es)
  • In fisica e in chimica, la legge dei volumi parziali di Amagat afferma che: il volume totale occupato da una miscela di gas ideali, a temperatura e pressione fissate, è uguale alla somma dei singoli volumi che ogni gas occuperebbe nelle medesime condizioni di temperatura e pressione. Il volume parziale è quindi il volume che le moli del componente i-esimo della miscela occuperebbero se venissero mantenute invariate le condizioni di temperatura T e pressione P. Più precisamente, il volume V di una miscela di q gas può essere definita come: dove rappresenta il volume parziale dell'i-esimo componente. La legge afferma inoltre che il volume parziale di un componente i-esimo della miscela è pari al prodotto del volume totale con la frazione molare dello stesso componente. In formule: La legge di Amagat prende il nome dal chimico Émile-Hilaire Amagat, che la formulò nel 1880. (it)
  • 有时也适用于低压下的真实气体混合物。高压下,阿马加定律一般不再适用,需要引入偏摩尔体积的概念。 (zh)
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  • Das Gesetz von Amagat besagt, dass falls verschiedene Gase (Anzahl ) mit Volumina , alle mit dem gleichen Druck (und gleicher Temperatur ) gemischt werden, das Gemisch bei einem Volumen den Druck p hat („ideale Mischungen“ von Gasen). Das Gesetz ist eine Folge der Zustandsgleichung idealer Gase. Dieses Gesetz ist benannt nach Emile Hilaire Amagat (1841–1915), einem französischen Physiker und Hochdruckexperten, der an der Universität von Lyon lehrte. (de)
  • La ley de Amagat o ley de los volúmenes parciales establece que en una mezcla de gases, cada gas ocupa su volumen como si los restantes gases no estuvieran presentes. El volumen específico de un determinado gas en una mezcla se llama volumen parcial (v). El volumen total de la mezcla se calcula simplemente sumando los volúmenes parciales de todos los gases que la componen. Esta es la expresión experimental del volumen como una magnitud extensiva. La ley honra al físico francés Emile Amagat (1841-1915), que fue quién la enunció por vez primera en 1880. (es)
  • 有时也适用于低压下的真实气体混合物。高压下,阿马加定律一般不再适用,需要引入偏摩尔体积的概念。 (zh)
  • Amagat's law or the Law of Partial Volumes of 1880 describes the behaviour and properties of mixtures of ideal (as well as some cases of non-ideal) gases. Of use in chemistry and thermodynamics, Amagat's law states that the extensive volume V = N·v of a gas mixture is equal to the sum of volumes Vi of the K component gases, if the temperature T and the pressure p remain the same: This is the experimental expression of volume as an extensive quantity. It is named after Emile Amagat. are considered to be the partial volumes of components in the gaseous mixture, then the total volume and (en)
  • In fisica e in chimica, la legge dei volumi parziali di Amagat afferma che: il volume totale occupato da una miscela di gas ideali, a temperatura e pressione fissate, è uguale alla somma dei singoli volumi che ogni gas occuperebbe nelle medesime condizioni di temperatura e pressione. Il volume parziale è quindi il volume che le moli del componente i-esimo della miscela occuperebbero se venissero mantenute invariate le condizioni di temperatura T e pressione P. Più precisamente, il volume V di una miscela di q gas può essere definita come: dove rappresenta il volume parziale dell'i-esimo componente. (it)
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  • Amagat's law (en)
  • Gesetz von Amagat (de)
  • Ley de Amagat (es)
  • Legge di Amagat (it)
  • 阿马加定律 (zh)
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