BIOL 1030 Lecture Notes - Lecture 8: Intermolecular Force, Vapor Pressure, Boiling Point

• School: University of Manitoba
• Department: Biological Sciences
• Course: BIOL 1030
• Professor: Kevin G.Scott

Document Summary

Intermolecular (inter-particle) forces: are forces of attracting between molecules and other particles that are responsible for the existence of liquids and solids. Phases of elements at room temperature: sine only 11 elements are gases at 25 c and 1 bar intermolecular forces are to important to ignore. The halogens and phases phases result from the balance of the forces of attraction between particles and their average kinetic energy. The balance of kinetic energy and intermolecular potential energy. In the gas phase the average kinetic energy is greater than the intermolecular attractive energy. Induced dipoles attraction between an ion or a permanent dipole and a molecule which has had a dipole induced in it by the ion or permanent dipole: hydrogen bonding forces attraction between lone pair electrons on an o, n or. The magnitude of dispersion forces depends on how easy it is to polarize the electron cloud of a molecule: a larger molecule has a larger polarizability, polarization.