1.1 What is Chemistry?

20.1. Entropy http://www.ck12.org What Is Entropy? At its most basic level,entropy(S) is a measure of probability. States that h ...

http://www.ck12.org Chapter 20. Entropy and Free Energy are many more possible ways to arrange the individual water molecules wh ...

20.1. Entropy http://www.ck12.org Each side of this equation contains one mole of gas particles, so that will not be a deciding ...

http://www.ck12.org Chapter 20. Entropy and Free Energy The Third Law of Thermodynamics When we discussed enthalpy, we always ta ...

20.1. Entropy http://www.ck12.org values of the products and those of the reactants: ∆S◦rxn=ΣnS◦(products)−ΣnS◦(reactants) As wi ...

http://www.ck12.org Chapter 20. Entropy and Free Energy Entropy (S) measures the probability of attaining a given state. Things ...

20.1. Entropy http://www.ck12.org Points to Consider Can we reliably predict under what conditions a reaction will be spontaneo ...

http://www.ck12.org Chapter 20. Entropy and Free Energy 20.2 Spontaneous Reactions and Free Energy Lesson Objectives Define Gib ...

20.2. Spontaneous Reactions and Free Energy http://www.ck12.org Now we can talk about the entropy changes in the universe simply ...

http://www.ck12.org Chapter 20. Entropy and Free Energy Standard Free Energy Change Much like the corresponding equations for∆H° ...

20.2. Spontaneous Reactions and Free Energy http://www.ck12.org Unlike∆G,∆H and∆S do not vary much with changes in temperature. ...

http://www.ck12.org Chapter 20. Entropy and Free Energy The sign of∆G predicts the behavior of a chemical reaction at a constan ...

20.3. Free Energy and Equilibrium http://www.ck12.org 20.3 Free Energy and Equilibrium Lesson Objectives Use the reaction quoti ...

http://www.ck12.org Chapter 20. Entropy and Free Energy Q=[C] c[D]d [A]a[B]b(Always) If Q >Keq, then the concentrations of th ...

20.3. Free Energy and Equilibrium http://www.ck12.org TABLE20.2:(continued) K ln K ∆G° Comments <1 negative positive reactant ...

http://www.ck12.org Chapter 20. Entropy and Free Energy FIGURE 20.4 and the desired products would be less favored. However, the ...

20.3. Free Energy and Equilibrium http://www.ck12.org FIGURE 20.5 Lesson Summary The reaction quotient can be compared to the e ...

http://www.ck12.org Chapter 20. Entropy and Free Energy CH 3 CO 2 H(aq)+H 2 O(l)CH 3 CO− 2 (aq)+H 3 O+(aq) Further Reading/Supp ...

20.4. References http://www.ck12.org 21.6 References Courtesy of NOAA. http://commons.wikimedia.org/wiki/File:NOAA_arctic_sprin ...

http://www.ck12.org Chapter 21. Acids and Bases CHAPTER (^21) Acids and Bases Chapter Outline 21.1 Acid-Base Definitions 21.2 Th ...