Super Novas Create Heavy Elements: Does this absorb or release energy?

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Discussion Overview

The discussion centers around the energy dynamics involved in the creation of heavy elements during a supernova event, specifically whether energy is absorbed or released during this process. The scope includes theoretical aspects of stellar fusion and the mechanics of supernova explosions.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant states that iron absorbs energy during fusion, leading to the collapse of a massive star and the subsequent creation of heavier elements.
  • Another participant suggests that extra energy is required to create the additional mass of heavier elements, which comes from the kinetic energy of particles involved in the reaction.
  • A third participant concurs with the previous points, indicating that gravitational compression facilitates the process, with heavier elements absorbing energy before being expelled.

Areas of Agreement / Disagreement

Participants generally agree on the role of energy absorption in the creation of heavier elements, but the specifics of energy dynamics and the overall process remain contested.

Contextual Notes

The discussion does not resolve the precise nature of energy changes during the creation of heavy elements, and assumptions about energy sources and transformations are not fully articulated.

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A massive star collapses when it begins to create iron in the normal fusion sequence. Iron absorbs energy. The collapse then produces all the heavier elements. When the heavier elements are created is energy absorbed or released?
 
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Extra energy is needed to create the extra mass. It comes from the kinetic energy of the particles going into the reaction.
 
Mathman

Bingo!
 
Agreed. The compression of gravity does all the work as heavier elements absorb the energy before being blasted out.
 

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