# Análisis 51: Benceno en bomba calorimétrica 

{% hint style="info" %}
Una muestra de 0.555 gramos de benceno es quemada en una bomba calorimétrica inicialmente a 25ºC, produciendo un incremento de temperatura de 1.90 ºC del agua. Se realiza inicialmente un experimento de calibración de la bomba calorimétrica, mediante una muestra de 0.95 gramos de ácido benzoico C6H5COOH, produciéndose un incremento de temperatura del agua de 2.05 ºC. El calor de combustión a presión constante es 3226 kJ/mol. Obtener los poderes caloríficos del combustible y compararlo con los obtenidos mediante balance energético y correlaciones experimentales.
{% endhint %}

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El calor de combustión puede determinarse normalmente con una bomba calorimétrica. Empleando el calorímetro a volumen constante, en este caso el calor liberado por la reacción Qv es △U.

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