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体積分率

化学における、体積分率(たいせきぶんりつ、英語: volume fractionφi とは、混合物中のある成分の体積Vi の混合前のすべての成分の体積の合計に対する割合である[1]

分母が混合したあとの体積である体積濃度とは異なる量である[2]

理想気体の場合は、モル体積が気体の種類によらず同一であるため、体積分率はモル分率と同じである。

脚注

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  1. ^ IUPAC, Compendium of Chemical Terminology, 2nd ed. (the "Gold Book") (1997). オンライン版:  (2006-) "volume fraction".
  2. ^ IUPAC Gold Book のconcentrationのページのvolume fractionへのリンクはmisleadingであるとしてversion 2.3.3.で削除されている。

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体積分率
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