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Old Oct 25th 2015, 07:01 AM   #1
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Thermodynamics Adiabatic Flame Temperature Problem?

Can someone please help me solve this? I have emailed my Prof and TA about this to no avail. If someone could guide me through the problem, it would be most appreciated. I have attempted this numerous times, but seem to be getting nowhere.

Thermodynamics Adiabatic Flame Temperature Problem?-image1.jpg

Last edited by ends; Oct 25th 2015 at 07:05 AM.
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Old Oct 25th 2015, 07:04 AM   #2
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I don't have a picture of my attempt.

I know the chemical reaction of interest is CO + 1/2O2 ----> CO2

I can do the math work, but it's just a matter of interpreting the question.

A)
You use the enthalpy at 298 to find it at 773. Then from 773 you integrate up to the adiabatic flame temp and solve a quadratic. And you're supposed to use the volume ratios to find the mole ratios in order to integrate.

B) Not too sure what to do here, but I know the exhaust gas is CO2 and N2.

C) Seems similar to A, but you have to take away 300J and then find a new flame temp.

Last edited by ends; Oct 25th 2015 at 07:08 AM.
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adiabatic, flame, problem, temperature, thermodynamics



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