CHM 143 Lecture Notes - Lecture 16: Food Energy, Exothermic Process, Jmol

• School: Oakland University
• Department: Chemistry
• Course: CHM 143
• Professor: Tillinger

Document Summary

System: what is undergoing the change and the focus of what is studied. The reactants and products of chemical reaction, not the medium that delivered them. Surroundings: everything else around the system in near vicinity. First law of thermodynamics: the total energy in the universe is constant. Internal energy(e):the sum of the p. e. and the k. e. of the particles that make up a substance. State function: does not matter the path taken to get from point a to point b just the. In a chemical system what matters is the energy difference between products and reactants. Eproducts>ereactants e= + value (system absorbing e from surroundings) Eproducts