CH 111 Chapter Notes - Chapter 11: Intermolecular Force, Acetonitrile, Polarizability

• School: University of Hartford
• Department: Chemistry - A&S
• Course: CH 111
• Professor: Edward Gray

Document Summary

Properties of liquids and solids are different than gases. Intermolecular forces in liquids and solids are stronger. Attractive forces aren"t strong enough to keep the particles from moving past one another. Intermolecular attractive forces are strong enough to hold particles close together and to lock them in place. Not very compressible particles have little free space between them. Rigid not free to undergo long-range movement. Condensed phases- refers to liquids and solids (because they"re fairly close together) The state of a substance depends largely on the balance between the kinetic energies of the particles (atoms, molecules, or ions) and the interparlice energies of attraction. Depends on temp can change the average kinetic energies of the particles. The strengths of intermolecular forces vary over a wide range but are generally much weaker than intermolecular forces- ionic, metallic, or covalent bonds. Boiling points reflect the strength of the intermolecular forces. Melting points solids increase as the strengths of the intermolecular forces increase.