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How does conduction transport heat through a steel rod that is placed in afire?A. Waves of electromagnetic energy travel down the steel rod fromone end to the other.B. Hot steel molecules move down the molecular matrix toward thecool end of the rod.C. Energy spreads from one end of the rod to the other throughmolecular collisions.D. Higher velocities of warmer steel molecules cause them to travelfrom one end to the other.

Sagot :

When one end of a steel rod is heated the kinetic energy of the molecules at that end increases. Thus the kinetic energy of the neighboring molecules increases hence their amplitude of vibration increases and during the collision the energy transfers to the next molecule. The heat is transfer by conduction

Therefore the correct answer is C.

Energy spreads from one end of the rod to the other through molecular collisions.