…In this formula, ⊿ T is the magnitude of the freezing point depression, M is the molar mass of the solvent, R is the gas constant, T f is the freezing point of the pure solvent, and ⊿ H f is the heat of freezing. Therefore, K f is a constant that depends only on the type of solvent, and is called the molar depression or molecular depression. According to this formula, as long as the amount of the second component added is the same, the magnitude of the freezing point depression will be the same regardless of its type. … *Some of the terminology that refers to "molar depression" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…この式で,⊿Tは凝固点降下の大きさ,Mは溶媒のモル質量,Rは気体定数,Tfは純溶媒の凝固点,⊿Hfは凝固熱である。したがって,Kfは溶媒の種類によってのみ決まる定数であり,モル降下molar depression,あるいは分子降下molecular depressionと呼ばれる。この式によると,加える第二成分の物質量さえ同一であればその種類によらずに凝固点降下の大きさが同じとなる。… ※「molar depression」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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