# Análisis 91: Determinación de la fórmula química del combustible

{% hint style="info" %}
Un motor genera la siguiente composición volumétrica de productos de combustión en base seca:

* O2    --> 9.5776 %
* CO<sub>2</sub>  --> 6.00 %
* CO    --> 2.00 %
* C<sub>6</sub>H<sub>14</sub> (inquemados) --> 600 ppm
* N<sub>2</sub> y H<sub>2</sub> el resto

Sabiendo que los productos de combustión se encuentran a 1200 ºC. Obtener:

1. La fórmula química del combustible (considerando que solo está compuesta de C e H)
2. La relación molar H/C del combustible
3. Coeficiente de exceso de aire
4. La relación gravimétrica aire/combustible
5. La relación gravimétrica estequiométrica aire/combustible
6. Poderes caloríficos del combustible
7. La constante de equilibrio
8. Número de octano y de cetano
9. Diagrama de Ostwald
10. Diagrama de Kissel
    {% endhint %}

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