On Friday, we talked about how changes in the way a chemical equation is written affect the form and value of the equilibrium constant. A few notable cases:
1. If the chemical equation is reversed, the value of K is inverted. If A<->B has equilibrium constant Kf, then B<->A has equilibrium constant 1/Kf.
2. If a chemical equation is multiplied by some constant, the value of the equilibrium constant is raised to that power. If A<->B has equilibrium constant K, then 4A<->4B has equilibrium constant K4.
3. If two (or more) chemical equations are added together, the value of the equilibrium constant is the product of the equilibrium constants for all the individual reactions. If A<->B has equilibrium constant K1, and B<->C has equilibrium constant K2, then A<->C has equilibrium constant Knet = (K1)(K2).
There's a new Mastering Chemistry assignment posted, due Tuesday. Also, we have an exam on Wednesday, so if you have questions let me know or bring them to class on Monday, we will have time to review.
Don't forget that tonight is Go Pink with the Dragons. The women's basketball game starts at 6pm and they will be raising money for the Roger Maris Cancer Center.
See you all on Monday.
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