A few questions about heat.....?

Question

1) What is thermal coefficient of a solid?
2) What happens to movement of atoms at Absolute Zero temperature?
3) If you are given the following substances: Gold, Diamond, Silver, Aluminium and Copper, rank them accordingly from the best thermal conductivity to the worst thermal conductivity.

Answer 1

1. The thermal coefficient is the speed with which heat moves through a specified material.

2. They don't move theoretically.

3. Thermal efficiency is closely related to electrical efficiency. Gold, Copper, Aluminum, Silver and Diamond.