CHE-1102 Study Guide - Quiz Guide: Electronegativity, Viscosity, Exothermic Process
Document Summary
Solids keep their own shape, their volume does not increase to fill its container, they are incompressible do not flow, and their diffusion occurs slowly. Liquids take shape of container, their volume does not increase to fill container, they are incompressible, they flow, and their diffusion occurs slowly. Gases take the shape and volume of their container, expand to fill its container, are compressible, flow, and their diffusion occurs rapidly. Intermolecular forces are not as strong as intramolecular forces, which are the forces between the atoms of a molecule. Types of intermolecular forces: ion-ion interactions, ion-dipole interactions, hydrogen bonding, dipole-dipole interactions, london dispersion forces. There is an attraction between cations and anions, which forms ionic compounds. The like charges repel one another, but the opposite charges form ion pairs. For example, in licl, the lithium ion is positive, and the chloride ion is negative. Ion-dipole interactions occur when a polar molecule that has a dipole moment interacts with an ion.
