Can I get description of how heat is realized during fire?

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    Fire Heat Oxidation
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SUMMARY

The discussion focuses on the process of heat generation during fire, which is a chain-reaction involving the oxidation of materials in the presence of oxygen at elevated temperatures. The ignition point is defined as the temperature at which oxidation begins, leading to heat release. The conversation delves into the atomic transitions during oxidation, specifically the transfer of electrons from the material to oxygen, and the role of excited states and intermediates in combustion. The complexities of combustion processes, including vibrationally and electronically excited states, are highlighted as crucial for understanding heat realization.

PREREQUISITES
  • Understanding of combustion chemistry
  • Knowledge of oxidation-reduction reactions
  • Familiarity with atomic and molecular structure
  • Basic principles of thermodynamics
NEXT STEPS
  • Study the mechanisms of oxidation in combustion reactions
  • Explore the role of excited states in chemical reactions
  • Learn about exothermic reactions and energy transfer
  • Investigate the formation and behavior of transient species in combustion
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Chemists, materials scientists, and anyone interested in the detailed mechanisms of combustion and heat generation during fire.

goodphy
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Hello.

I've learn that fire is chain-reaction process when burning materials are surrounded by oxygen with enough amount and they're heated exceeding some ignition point.

That point is nothing but the temperature above which oxidation between material and oxygen begins. Then during oxidization, heat is realized so chain-reaction starts.

Here I would like to know atomic transition of this oxidation. Specifically, I want to know how heat is realized when electron from material transfers to the oxygen. Is it due to that original energy level of the electron higher than occupied level in oxygen? Does electron occupy outermost orbit of oxygen? Is oxidization all heat-realize process?
 
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The details of combustion are complicated processes with intermediate transient species that are not mentioned in the total reaction formulas. These intermediates are in excited states: electronic excited states and vibrationally excited states. Some are on dissociative potential surfaces, which means that the pieces of such a molecule will fly apart with a kinetic energy of a few eV. Vibrationally excited states will get to the ground state in collisions, which also transfers energy to translational kinetic energy.
 

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