first law of thermodynamics

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Related to first law of thermodynamics: 2nd 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 ?
11) William Thomson (Lord Kelvin) is generally credited with formulating the First Law of Thermodynamics in its present form.
Engineers refer to this as the first law of thermodynamics.
Among the topics are the first law of thermodynamics, the thermodynamics of mixtures and open systems, the canonical equation of state, the thermodynamics of surfaces, and galvanic cells and electromotive forces.
This technique is based on the first law of thermodynamics for processes with finite speed It is presented a new PV/Px diagram that reveals the effects of pressure losses produced by friction, finite speed and throttling processes in the regenerator of the Stirling engine.
And yet the company touts a list of five or 10 military laboratories and other entities that have evidently endorsed this violation of the First Law of Thermodynamics.