entropē (English spelling)

Japanese: entropē(英語表記)entrope
entropē (English spelling)

…Thus, it is clear that Q / T represents the degree of disorder in the state, and this Q / T is defined as entropy S. The concept of entropy was introduced by RJE Clausius as a characteristic of thermodynamic changes of state, and its name comes from the Greek word entropē (meaning reversing action) and is named for the capacity of change.
[The microscopic meaning of entropy]
It was L. Boltzmann who gave a microscopic meaning to entropy.

*Some of the terminology that mentions "entropē" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…このように,Q/Tが状態の乱れの度合を表していることは明らかで,このQ/TをエントロピーSと定義する。 エントロピーという概念は,熱力学的な状態の変化を特徴づけるものとしてR.J.E.クラウジウスが導入したものであり,その名はギリシア語のentropē(反転する働きの意)に由来し,変化容量の意味で命名されたものである。
[エントロピーのミクロな意味]
 エントロピーにミクロな意味づけを与えたのはL.ボルツマンである。…

※「entropē」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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