By which primary mechanism is thermal heat transferred along a solid metal rod from the heated end to the cooler end?
Answer and explanation
Correct answer: A. Conduction
- Step 1: Conduction is the transfer of heat through a stationary medium by vibrating particles and free electrons without bulk movement of matter. Step 2. In solid metals, free delocalized electrons rapidly transfer kinetic energy between atoms. Answer: Conduction. Why not the others: Convection occurs only in fluids (liquids and gases) via density currents; radiation travels as electromagnetic infrared waves.
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