…In a sufficiently dilute solution, activity is equal to the concentration (molar fraction x i ). The degree of discrepancy with the concentration can be expressed by setting a i = f i x i and defining the activity coefficient f i . In many cases, the higher the concentration, the smaller f i becomes than 1, and the greater the interaction between the components, the more pronounced this becomes. … *Some of the terminology explanations that mention the "activity coefficient" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…十分希薄な溶液では活動度は濃度(モル分率xi)に等しくなる。濃度との不一致の程度は,ai=fixiとおき,活動度係数fiを定義し,これで表すことができる。多くの場合,濃度が高くなるほどfiは1より小さくなり,成分間の相互作用が大きいほど著しい。… ※「活動度係数」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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