The task in the image is about calculating the actual volume and composition of air required for the combustion of liquid hexane ($C_6H_{14}$) and determining the temperature of combustion products. The key data includes:

1. Combustion coefficient ($\alpha_b$): $\alpha_b = 1.3$
2. Efficiency ($\eta$): $\eta = 0.25$
3. Heat of formation of hexane combustion ($Q^\circ_{\text{obr.}}$): $167.2 \, \text{kJ/mol}$
4. Molecular formula of hexane: $C_6H_{14}$

Would you like me to provide a step-by-step explanation for solving this problem? If so, I can detail the combustion reaction, air volume calculations, and heat considerations!