CHEM 1062 Chapter Notes - Chapter 20: Gibbs Free Energy, Jmol, Thermodynamics
Document Summary
Chemistry notes ch 20: thermodynamics: entropy, free energy, and the direction of chemical reactions. Includes: thermodynamic laws, entropy, enthalpy, gibbs free energy with equations to. Corresponding textbook: chemistry; the molecular nature of matter and change. Spontaneous: describes a process that occurs by itself, without continuous input of energy. 1 st law of thermodynamics: states that the total mass-energy in the universe is constant. 2 nd law of thermodynamics: states that a process is spontaneous if it causes entropy of the universe to increase. 3 rd law of thermodynamics: states that the entropy of a perfect crystal is 0 at t=0k. Entropy (s): the # of ways which something can distribute its energy among quantum states. A measure of the order of the universe, where things tend to more towards greater disorder (higher entropy). Gibbs free energy (g): combines systems of entropy and enthalpy to measure the spontaneity of a process.
