Intermolecular forces determine the physical properties of substances from "summary" of Chemistry by Russell Kuhtz
Intermolecular forces are interactions that occur between molecules. These forces determine many of the physical properties of substances. For instance, the boiling point of a substance is determined by the strength of the intermolecular forces present. Substances with stronger intermolecular forces will have higher boiling points because more energy is required to overcome these forces and change the substance from a liquid to a gas. Similarly, the melting point of a substance is also influenced by intermolecular forces. Substances with stronger intermolecular forces will have higher melting points because more energy is needed to overcome these forces and change the substance from a solid to a liquid. In contrast, substances with weaker intermolecular forces will have lower melting points because less energy is required to break these forces and change the substance from a solid to a liquid. Moreover, int...
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