Why does a metal rod conduct thermal energy far more effectively than a plastic rod of similar size?
- AThe molecules in the plastic are much closer together than the atoms in the metal.
- BThe molecules in the plastic are much larger than the atoms in the metal.
- CThe molecules in the plastic are much more tightly held together than the atoms in the metal.
- DThe molecular structure in the plastic contains no free electrons, but the metal has free electrons.