# Análisis 121: Combustión a volumen constante en reactor cerrado
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Una mezcla débil de octanaje C8H18 y aire, con un dosado relativo de 0.9, se enciende a 10 bar y 500 K y arde a volumen constante. Suponiendo que la combustión es adiabática, calcule las condiciones al final de la combustión permitiendo la disociación del dióxido de carbono y el agua, pero despreciando cualquier formación de NO.
*(Advanced Thermodynamics for Engineers, 2 ed., D. E. Winterbone, 2015)*
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Sin disociación de los productos de combustión:
 
Considerando los procesos de disociación química:
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