Thermodynamic Systems and Calorimetry Practice Test - MCAT Physical

The combustion of liquid hexane in air at 298K gives gaseous carbon dioxide and liquid water, as shown in this reaction.

$2C_{6}H_{14}(l) + 19O_{2}(g)\rightarrow 12CO_{2}(g) + 14H_{2}O(l)$

$\Delta H_{f}^{0}$ of $C_6H_{14}(l)$ is $-167.4 \frac{kJ}{mol}$ .

$\Delta H_{f}^{0}$ of is $-393.5 \frac{kJ}{mol}$ .

$\Delta H_{f}^{0}$ of is $-285.8 \frac{kJ}{mol}$ .

Calculate the $\Delta H_{rxn}^{0}$ for the combustion of hexane liquid hexane at 298K.

Thermodynamic Systems and Calorimetry Practice