Propane gas (C3H8) at 300 K and 100 kPa enters combustion chamber operating at steady state and

Question:

Propane gas (C3H8) at 300 K and 100 kPa enters combustion chamber operating at steady state and reacts with 100% of excess air entering at 350 K and 100 kPa. An equilibrium mixture consists of CO2, CO, H2O(g), H2, O2, and N2 exits at 1100 K and 100 kPa. Determine
The heat transfer (Q) to the surroundings in kJ/kmol of propane.