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Virial coefficients appear as coefficients in the virial expansion of the pressure of a many-particle system in powers of the density, providing systematic corrections to the ideal gas law. They are characteristic of the interaction potential between the particles and in general depend on the temperature. The second virial coefficient depends only on the pair interaction between the particles, the third depends on 2- and non-additive 3-body interactions, and so on.

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  • Coefficient du viriel (fr)
  • Coeficiente do virial (pt)
  • Virial coefficient (en)
  • 维里系数 (zh)
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  • Virial coefficients appear as coefficients in the virial expansion of the pressure of a many-particle system in powers of the density, providing systematic corrections to the ideal gas law. They are characteristic of the interaction potential between the particles and in general depend on the temperature. The second virial coefficient depends only on the pair interaction between the particles, the third depends on 2- and non-additive 3-body interactions, and so on. (en)
  • 维里系数(Virial coefficient)是热力学状态方程按密度展开(称为维里展开)各项的系数。维里系数与分子间势能函数相关,体现多体相互作用对理想气体状态方程的修正。例如,作为维里展开中密度平方相系数的第二维里系数只取决于粒子对间的相互作用,而第三维里系数则取决于二体与三体间非加和性的相互作用。实验上维里系数可从得到的状态方程多项式拟合得到,理论上也可根据势函数出发积分导出,唯高阶解析式非常复杂,计算量迅速增大。维里系数是温度的函数。 (zh)
  • Os coeficientes do virial aparecem como coeficientes na expansão do virial, em que é calculada a pressão de um sistema de muitas partículas em potências da densidade. Esses coeficientes são característicos do potencial de interação entre as partículas e, em geral, dependem da temperatura. O segundo coeficiente do virial é utilizado para o cálculo das reações entre dois corpos. O terceiro coeficiente do virial é utilizado para calcular reações entre três corpos, e assim por diante. (pt)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Graph_Cluster_integral_2.png
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  • Virial coefficients appear as coefficients in the virial expansion of the pressure of a many-particle system in powers of the density, providing systematic corrections to the ideal gas law. They are characteristic of the interaction potential between the particles and in general depend on the temperature. The second virial coefficient depends only on the pair interaction between the particles, the third depends on 2- and non-additive 3-body interactions, and so on. (en)
  • Os coeficientes do virial aparecem como coeficientes na expansão do virial, em que é calculada a pressão de um sistema de muitas partículas em potências da densidade. Esses coeficientes são característicos do potencial de interação entre as partículas e, em geral, dependem da temperatura. O segundo coeficiente do virial é utilizado para o cálculo das reações entre dois corpos. O terceiro coeficiente do virial é utilizado para calcular reações entre três corpos, e assim por diante. * Este artigo foi inicialmente traduzido, total ou parcialmente, do artigo da Wikipédia em inglês cujo título é «Virial coefficient», especificamente desta versão. (pt)
  • 维里系数(Virial coefficient)是热力学状态方程按密度展开(称为维里展开)各项的系数。维里系数与分子间势能函数相关,体现多体相互作用对理想气体状态方程的修正。例如,作为维里展开中密度平方相系数的第二维里系数只取决于粒子对间的相互作用,而第三维里系数则取决于二体与三体间非加和性的相互作用。实验上维里系数可从得到的状态方程多项式拟合得到,理论上也可根据势函数出发积分导出,唯高阶解析式非常复杂,计算量迅速增大。维里系数是温度的函数。 (zh)
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