expression, noun
first law of thermodynamics
A fundamental principle in physics stating that energy cannot be created or destroyed, only transformed. Often contrasted with the second law.
See also: 熱力学第一法則 (ねつりきがくだいいちほうそく)
熱力学の第一法則はエネルギー保存則の一形態である。
The first law of thermodynamics is a form of the law of conservation of energy.
この問題を解くには熱力学の第一法則を適用する必要がある。
To solve this problem, you need to apply the first law of thermodynamics.
A compound of 熱力学 (thermodynamics), の (possessive particle), 第一 (first), and 法則 (law). The term is a direct translation of the English 'first law of thermodynamics'.