Lecture5 - Take Home Lessons Thermodynamics Simple Elegant...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Chapter 20 Thermodynamics: Entropy, Free Energy and the Direction of Chemical Reactions “Take Home Lessons” Thermodynamics: Simple Elegant Relations that Teach Us the Directions of Reactions and Maximum Extractable Work Entropy makes the world go round Entropy is simply the number of different possible permutations/probability to have certain arrangement of atoms AND energy Entropy also referred to as disorder Entropy 0 (always increases iff change) Thermodynamics: Entropy, Free Energy, and the Direction of Chemical Reactions 20.1 The Second Law of Thermodynamics: Predicting Spontaneous Change energy/heat needed …. Probability of gaining net energy to drive reaction related to entropy (Second Law of Thermodynamics Δ S>0) 20.2 Calculating the Change in Entropy of a Reaction (Third Law of Thermodynamics S=0 at T=0 absolute determination of entropy) 20.3 Entropy, Free Energy, and Work 20.4 Free Energy, Equilibrium, and Reaction Direction { “Suggested” Problems: Chapter 20: 2, 5, 10, 12,16,18, 20, 22, 24, 26, 28, 31, 33, 37, 46, 56, 58, 62, 64, 65, 66, 68, 72, 78, 80, 83, 87, 96, 99,104,106,110 Be sure to be understand free energies and connection to entropy. Develop facility to use free energies, entropy, enthalpies to predict reaction direction from starting conditions and maximum work/energy that can extracted
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon