Acetylene (C 2 H 2 ) is commonly used in welding, where high temperatures are required. Consider a burner that is fed with acetylene and oxygen, each at 100 kPa and 25°C, where the combustion products...

Acetylene (C₂H₂) is commonly used in welding, where high temperatures are required. Consider a burner that is fed with acetylene and oxygen, each at 100 kPa and 25°C, where the combustion products include only CO₂, CO, H₂O, and O₂
in equilibrium. Carbon dioxide present in the combustion products is in equilibrium with CO and CO₂
according to the following stoichiometric equation

a. Determine the adiabatic flame temperature as a function of excess oxygen in the range of 0–300%. b. Determine the flame temperature for the case of heat removal in the range of 0–30% of the heat of reaction of acetylene for zero excess oxygen.