CHEM 281 Lecture Notes - Lecture 1: Rate Equation, Acid Dissociation Constant, Elementary Reaction
22 Jan 2015
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Chemistry midterm 2 study notes (chapter 14 principles of chemical equilibrium and chapter 15 aqueous acid-base. Chapter 15 sections 1, 2, 3, 5 in chapter 1,2,3,4,5,6,7,8,11,12 end of section 1. 1, 1. 2, 1. 3, 1. 4, 2,1, 2,2, 3. 1, 3. 3, 5. 1, 5. 2, 5. 3 end of chapter 1,3,5,7,9,11,13,15,21,37,39,41,43. Using no2 and n2o4 as an example no2 is continually consumed to produce n2o4; but decomposition of n2o4 produces no2 and consumes n2o4 in reverse reaction. Rate of decomposition increases as product (n2o4) concentration increases. Dynamic equilibrium when the rate of one reaction balances the rate of the other. Rate of forward reaction = rate of reverse reaction dynamic because individual molecules react continuously it is at equilibrium because there is no net change in the system. Gas levels till level off to constant value as reaction reaches equilibrium. Most reactions do not go to completions and no2 levels will never drop to zero.
