Why do polymers generally have higher melting points than small molecular substances?

Polymers generally have higher melting points than small molecular substances because the intermolecular forces between polymer molecules are stronger. This means that more energy is required to overcome these forces during melting.

This answer effectively links the strength of intermolecular forces to the melting points of substances, demonstrating the student's ability to apply knowledge of bonding and structure to explain observable properties. The question assesses the student's understanding of the relationship between molecular structure and physical properties.