In a furnace with heating element temperature at 1700°C, the dominant mechanism of heat transfer will be__________________?
Correct answer: B. Radiation
- A. Conduction
- B. Radiation
- C. Natural convection
- D. Forced convection
Explanation
At about 1700°C, thermal radiation increases very strongly with absolute temperature and dominates over ordinary convection and conduction from the heating element. This is why high-temperature furnaces commonly rely on radiative heating.
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