…An empirical law for the constant-volume molar specific heat C v of solids discovered in 1819 by Pierre Louis Dulong (1785-1838) and Alexis Thérèse Petit (1791-1820). Regardless of the type of solid, C v = 3 R ( R is the gas constant). It is explained by the classical law of equipartition of energy, but this does not hold true at low temperatures due to the appearance of quantum properties. Einstein's specific heat formula [Shunichi Kobayashi]… *Some of the terminology that refers to "Dulong-Petit's law" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…デュロンPierre Louis Dulong(1785‐1838)とプティAlexis Thérèse Petit(1791‐1820)によって1819年に発見された,固体の定積モル比熱Cvについての経験法則。固体が何であるかによらずCv=3R(Rは気体定数)であるとする。古典的なエネルギー等分配の法則で説明されるが,低温では量子性が表れるために成り立たない。アインシュタインの比熱式【小林 俊一】… ※「Dulong-Petit's law」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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