law of thermodynamics


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Related to law of thermodynamics: first law of thermodynamics, law of conservation of energy, third law of thermodynamics, second law of thermodynamics, zeroth law of thermodynamics

law of thermodynamics

n.
See chart at thermodynamics.

law of thermodynamics

n
1. (General Physics) any of three principles governing the relationships between different forms of energy. The first law of thermodynamics (law of conservation of energy) states that the change in the internal energy of a system is equal to the sum of the heat added to the system and the work done on it. The second law of thermodynamics states that heat cannot be transferred from a colder to a hotter body within a system without net changes occurring in other bodies within that system; in any irreversible process, entropy always increases. The third law of thermodynamics (Nernst heat theorem) states that it is impossible to reduce the temperature of a system to absolute zero in a finite number of steps
2. (General Physics) Also called: zeroth law of thermodynamics the principle that if two bodies are each in thermal equilibrium with a third body then the first two bodies are in thermal equilibrium with each other
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.law of thermodynamics - (physics) a law governing the relations between states of energy in a closed system
law of nature, law - a generalization that describes recurring facts or events in nature; "the laws of thermodynamics"
second law of thermodynamics - a law stating that mechanical work can be derived from a body only when that body interacts with another at a lower temperature; any spontaneous process results in an increase of entropy
third law of thermodynamics - law stating that the entropy of a substance approaches zero as its temperature approaches absolute zero
zeroth law of thermodynamics - the law that if two bodies are in thermal equilibrium with a third body then the first two bodies are in thermal equilibrium with each other
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
conservation of energy, first law of thermodynamics, law of conservation of energy - the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes
References in periodicals archive ?
This cannot be allowed, simply based on the zeroth law of thermodynamics, if both cavities are said to be at the same temperature.
The Third Law of Thermodynamics states that for a perfect monatomic crystal, the entropy, S, approaches 0 as T approaches 0.
It's as interesting as watching ice melt, which happens to be a common example of entropy, a key property of the second law of thermodynamics.
And another: "According to the second law of thermodynamics, energy transformations result in the universe becoming more disordered.
The Universe is heading in this direction, according to the second law of thermodynamics.
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.
He covers a brief history of entropy and the second law of thermodynamics, all you need to know but never dared admit that you already knew, the uniform spatial distribution, the Boltzman distribution, the Maxwell-Boltzmann distribution, entropy and the second law in the world of marbles, and entropy and the second law in the real world.
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.
To avoid this, the second law of thermodynamics is taken into consideration in this study.
Entitled "The Two Cultures", it warned of the growing gulf between scientists and "literary intellectuals", a class he described as "natural Luddites" who not only sneered at science as an inferior branch of learning and were ignorant of the Second Law of Thermodynamics but in their complacent uninterest in the scientific revolution were blind to the menaces of nuclear weapons, overpopulation and the gap between the rich and poor.
Murphy's Law is often cited as a popularisation of the Second Law of Thermodynamics, the law of entropy which predicts that everything is moving inexorably towards a more disorganised state.
ONE of the few scientific facts I can easily remember, apart from the theory of relativity and Boyle's second law of thermodynamics (naturally), is that nearly half of your body heat is lost through your head.