Which of the following has the highest theoretical flame temperature ?
Correct answer: C. Acetylene
- A. Blast furnace gas
- B. Hydrogen
- C. Acetylene
- D. Coke oven gas
Explanation
Acetylene produces the highest theoretical flame temperature among these fuels because it has a high heating value per unit oxygen requirement and supports a very hot flame. Hydrogen is also a high-temperature fuel, but its theoretical flame temperature is lower under comparable conditions.
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