Theory of Energy Output: An Overview

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Discussion Overview

The discussion revolves around the concept of energy output, particularly focusing on the idea of producing more energy than is consumed in the process. Participants explore various terms and concepts related to energy release in chemical and physical reactions, including exothermic reactions and the notion of perpetual motion.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant asks for a term that describes an action producing more energy than is used, indicating a lack of background in physics.
  • Another participant introduces the term "exothermic reaction," explaining it as a reaction that releases more energy than is consumed.
  • A different participant points out that the original question seems to imply a scenario where more energy is released than input, referencing the concept of a Perpetual Motion Machine of the First Kind, which is deemed impossible.
  • Participants mention that in nuclear fusion, the term exothermic is also applicable, yet they note that achieving "breakeven" is still a goal in these processes.
  • One participant emphasizes that energy does not come from nowhere but is stored as potential energy in particle bonds.
  • Another participant draws an analogy to economic statements, suggesting that energy can seem "free" under certain conditions, like coasting down a hill after gaining potential energy.
  • Context is highlighted as important, with references to thermodynamics and the implications of perpetual motion or heat pumps.
  • One participant proposes alternative terms such as "exenthalpic" or "exergonic," noting that these terms have prior usages.

Areas of Agreement / Disagreement

Participants express differing views on the feasibility of producing more energy than is consumed, with some supporting the idea of exothermic reactions while others emphasize the impossibility of perpetual motion. The discussion remains unresolved regarding the terminology and implications of energy output.

Contextual Notes

There are limitations in the assumptions made about energy systems, particularly regarding the definitions of energy input and output, as well as the context in which these terms are applied.

purkov
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Therory of energy??

Greetings,
Is there a term or word to describe regarding energy output "an action which produces more energy than is used to prepare"

I don't have any background in physics so this is most likely an easy question for you to answer. Let me know if you need more info regarding my question and thank you for your help.

Philip
 
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Welcome to the forums :smile:

In chemistry the term exothermic reaction is used:
An exothermic reaction is a chemical reaction that is accompanied by the release of heat. In other words, the energy needed for the reaction to occur is less than the total energy released. As a result of this, the extra energy is released, usually in the form of heat.
 


One thing. It looks like the OP was asking the opposite.

Something that releases more energy than was put in is, if I remember correctly, a Perpetual Motion Machine of the First Kind, which is impossible, in which case another input of energy must be present, perhaps from the chemicals present in the reaction releasing some of their energy.
 


In nuclear fusion, they use exothermic too. But they're still shooting for "breakeven"
 


Whovian, the energy doesn't come from nowhere, it's stores as potential energy in the particle bonds.
 


Pythagorean said:
In nuclear fusion, they use exothermic too. But they're still shooting for "breakeven"

In a certain sense, these nuclear reactions aren't "break even," cos there's still a net loss of usable energy. The energy source is the nuclear fusion. :biggrin:
 


it's an economic statement. Just like I get "free energy" by taking my bike up an elevator so I can coast down a hill. It's only free to me.
 


Yes, context matters here. In thermodynamics, it could be perpetual motion/ a first law violation or it could just be a heat pump.
 
Whovian said:
in which case another input of energy must be present, perhaps from the chemicals present in the reaction releasing some of their energy.
Thats not input though that's part of the system. The system has stored energy, X energy is then applied which liberates >X energy. For example, taking a match to a barrel of oil. The input is the match.
 
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By analogy with exothermic, I suggest exenthalpic or exergonic. There do appear to be prior usages.
 

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