CEM 141 Lecture Notes - Lecture 36: Thermal Energy, Boltzmann Constant, Molar Mass
Document Summary
Atoms interact electrostatically interactions range from ldf to bonding (of all kinds). When atoms interact, the system becomes more stable (and loses energy to surroundings). All electrostatic interactions require energy to overcome. The way atoms interact depends on the arrangement of electrons (valence electrons). When atoms form new compounds the properties are emergent (not the sum of the atoms). Properties of materials depend upon the types of bonds, spatial arrangement of atoms, and the interactions between molecules. Temperature of phase changes allows us to make predictions about types of interactions. Units celsius c, kelvin k, (fahrenheit f) A change of 1 c = a change of 1 k 0 c is the same as 273. 15 k. 0 k is absolute zero (lowest possible temp) A useful macroscopic way of thinking about temperature is that it tells you in which direction thermal energy (often called heat) will move.
