Question: Is it oxygen or fuel that releases energy during burning?
The answer from this article:
Our analysis provides simple answers to two related, important questions: “What makes fire hot?” and “How much heat is produced?” in the combustion of a certain fuel. One can now explain that the double bond in O2 is unusually weak, and therefore the formation of the stronger bonds in CO2 and H2O results in the release of heat or an increase in thermal motion.
Generally, our analysis indicates that it is not the organic fuel but rather O2 that is “energy-rich”.
It is usually said that fuel contains energy and that oxygen only enables the release of energy in the sense like enzymes enable reactions. Does anyone want to comment this? Because, from this article it seems that it is just the opposite: fuel enables the release of energy from oxygen.
(This question was initially nutrition-related: Does energy come from nutrients or oxygen?)