Hydrocarbon Combustion Energy Calculation

I need the precise energy release for a hydrocarbon combustion reaction. This is strictly a chemical-reaction analysis—no nuclear or electrochemical aspects are involved. Once I give you the molecular formula (e.g., CH₄, C₈H₁₈, or any other hydrocarbon), you will determine ΔH (kJ mol⁻¹) for the complete combustion in oxygen, referencing standard thermodynamic data at 25 °C.

Please include:
• the balanced equation,
• the step-by-step enthalpy calculation (Hess’s Law, bond enthalpies, or tabulated ΔHf° values),
• the final energy figure clearly stated per mole and, when requested, per kilogram,
• citations for every data source you use (CRC Handbook, NIST webbook, etc.).

A brief note on your calculation method or any software you plan to employ (Excel, Python, MATLAB) will help me reproduce the result later.