Responses
A Air is a better conductor of heat because it is a mixture.Air is a better conductor of heat because it is a mixture.
B Copper is a better conductor of heat because it contains electrons.Copper is a better conductor of heat because it contains electrons.
C Air conducts heat better because the molecules in a gas are further apart.Air conducts heat better because the molecules in a gas are further apart.
D Copper wire conducts heat better because molecules in a solid are closer together.
1 answer
The correct response is:
D. Copper wire conducts heat better because molecules in a solid are closer together.
Explanation: Metals like copper have closely packed atoms that allow for efficient transfer of heat through vibrations and the movement of free electrons. In contrast, air is a gas where the molecules are farther apart, resulting in poorer thermal conductivity. This means that copper wire conducts heat significantly better than air.
