In the molecular explanation of conduction, heat is transferred by the

Assessment: JAMB UTME - Physics - 2019 Subject: Physics

Question 1 Report

In the molecular explanation of conduction, heat is transferred by the
Answer Details
In the molecular explanation of conduction, heat is transferred by the Free electrons. In metals, free electrons move randomly and collide with other particles as they gain kinetic energy. These free electrons transfer the energy to the adjacent particles, which in turn gain kinetic energy and transmit it to other adjacent particles, thus transferring heat energy from one part of the material to another. This process of heat transfer by free electrons is called conduction. Therefore, the correct option is "Free electrons."
Read lesson note on Thermal Expansion (JAMB)
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