Which gas has the highest flame temperature - hydrogen or carbon

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Discussion Overview

The discussion centers on the comparison of flame temperatures between hydrogen and carbon gases, exploring the conditions under which each may achieve higher temperatures. It includes considerations of adiabatic flame temperatures and the stoichiometric ratios of fuel and oxygen.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant questions which gas has the highest flame temperature, hydrogen or carbon, and seeks clarification on the reasoning behind the answer.
  • Another participant suggests that carbon may have a higher flame temperature, but acknowledges that hydrogen could reach higher temperatures under certain conditions.
  • A third participant provides a reference to adiabatic flame temperatures for stoichiometric combustion, indicating that these temperatures can be calculated using formation enthalpies.
  • A separate question is raised about the comparative support for combustion from oxygen versus ozone, indicating a shift in focus from the original question.

Areas of Agreement / Disagreement

Participants do not reach a consensus on which gas has the highest flame temperature, and multiple competing views remain regarding the conditions affecting flame temperatures.

Contextual Notes

The discussion includes references to adiabatic conditions and stoichiometric ratios, but does not resolve the implications of these factors on the flame temperatures of hydrogen and carbon.

taregg
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which gas has the highest flame temperature .hydrogen or carbon...and why
 
Science news on Phys.org
I think carbon .but in touch heat it will be hydrogen. ...is it correct
 
Here is a list of adiabatic (no heat losses) flame temperatures for equivalence ratio 1 (meaning oxygen and fuel are present in stoichiometric ratios and all oxygen and all fuel is burned, this gives the highest flame temperature)

http://en.wikipedia.org/wiki/Adiabatic_flame_temperature

The adiabatic flame temperatures can be computed using the formation enthalpies of the species involved in the chemical reaction.
 
which will support fire flame more...oxygen or ozone
 

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