first law of thermodynamics

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Noun1.first law of thermodynamics - the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes
law of thermodynamics - (physics) a law governing the relations between states of energy in a closed system
conservation - (physics) the maintenance of a certain quantities unchanged during chemical reactions or physical transformations
References in periodicals archive ?
The Bid Bond shall not be accepted if they have time power less than ten (10) months from the date of tender (Article 24 Fri the 2nd JIS and Article 157 Fri the 1st Law.
2]O) obtained from the Fick's 1st Law prediction, and compare the results to those from so-called static chambers.
Gas diffusion rate is proportional to the concentration gradient according to Fick's 1st Law (Eqn 1) (Glinski and Stepniewski 1985; Ghildyal and Tripathi 1987).