Heat Transfer / Conduction

Happens in solid Particles near the heat source gains KE and vibrate more vigorously These vibrations are passed on the neighboring particles causing it gain the KE These transfer of vibration goes on. These is how the heat transfer takes place in solid.

But not all solids are good conductor of heat. So what is the difference between conductor and insulator The differences is Conductors has a lot of free moving electron and insulator don’t have free moving electrons. Conductors : All metals Insulators : Plastic, Glass, Rubber, Wood So in metals conduction happens in 2 ways 1. Through passing on the vibration to the neighboring particles 2. By free moving electrons