Fusion reaction deuteron + tritium

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Discussion Overview

The discussion centers around the fusion reaction between deuteron and tritium, specifically addressing the source of the energy released (approximately 17.59 MeV) despite the initial mass of the reactants being greater than that of the products. Participants explore the mass discrepancies and the implications for energy release in nuclear reactions.

Discussion Character

  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions the origin of the heat produced in the fusion reaction, noting that the sum of the substrates' mass appears greater than that of the products.
  • Another participant acknowledges the mass difference, suggesting that a small part of the stored energy is released during the reaction.
  • A participant corrects their earlier statement, indicating that the mass of the products is actually greater than that of the substrates, and seeks clarification on the source of the energy.
  • One participant cites a potential error in the mass of the alpha particle from Wikipedia and provides an alternative source for the correct mass, recalculating the mass difference to align with the energy release value.
  • Another participant agrees that the Wikipedia article lacks the mass of the alpha particle, directing attention to the helium article for accurate information.
  • A later reply acknowledges a mistake regarding the alpha particle's mass, indicating a correction in understanding.

Areas of Agreement / Disagreement

Participants express uncertainty regarding the mass values and the implications for energy release, with some corrections and clarifications made, but no consensus is reached on the overall understanding of the energy source in the reaction.

Contextual Notes

Limitations include potential inaccuracies in mass values from different sources and the need for careful verification of data when discussing nuclear reactions.

Jasiu
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Hello. Where is come from the heat (about 17,59MeV) from reaction deuteron + tritium -> Alfa + netron + Q although sum of substrates's mass is greater than sum of products's mass?
 
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Jasiu said:
although sum of substrates's mass is greater than sum of products's mass?
That is the point. The initial mass is larger - a small part of that stored energy is released in the reaction.
 
I make mistake: products mass is greater (alfa - 4,02781u, neutron - 1,008665u, sum - 5,036465) than substracts (deuteron - 2,01410u, tritium - 3,016049u, sum - 5,03015u). Where is come from this energy?
 
Yeah, you're right, my mistake.
 

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