Question Detail
Question
What is the typical strength range of intermolecular forces compared to covalent bonds?
Correct Answer
Option B is the correct answer.
Detailed Explanation
Covalent bond strengths typically range from 50-200 kJ/mole, while intermolecular forces (van der Waals forces) are much weaker, ranging from 1-12 kJ/mole. This significant difference explains why molecular substances have lower melting and boiling points than ionic or covalent network solids.
Hint
Intermolecular forces are much weaker than chemical bonds.