Adiabatic Flame Temperature

When a combustion reaction takes place energy is released to the combustion products. If no heat is lost in this process, the temperature of the combustion products is known as the "Adiabatic Flame Temperature."

For methane combustion in air at 1 atmosphere the Adiabatic Flame Temperature is
2,328 K or 2055 C. For hydrogen burning in air at 1 atmosphere the Adiabatic Flame temperature is 2,400 K or 2127 C.

When a flame loses heat to the environment, or is diluted with an inert material that has to be heated with the heat released in the combustion reaction, the actual temperature reached is less than the ideal adiabatic flame temperature. This is the actual "Flame Temperature."

Remember that a measuring device (thermocouple) may also remove heat from the flame. How? What effect does this have on your data?