Oxidation of Ammonia by Air

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The standard enthalpies of reactions R1 and R2 are and , respectively. All of the heat requirements for the formations are obtained from [1, Appendix B1].


This Demonstration computes the heat added to the reactor in kW. For this purpose, we make use of the energy balance equation for reactive systems: (i.e. the heat of reaction method). The specific enthalpies of all components are computed using the temperature-dependent expressions of the constant-pressure heat capacities given in [1, Appendix B2]. In addition, we chose as reference states the molecular species , , , , and at 25 °C and 1 atm.


Contributed by: Housam Binous and Ahmed Bellagi (September 2016)
Open content licensed under CC BY-NC-SA




[1] R. M. Felder and R. W. Rousseau, Elementary Principles of Chemical Processes, 3rd ed., New York: John Wiley & Sons, 2004.

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