CHM 116 Ch 15 I-Equilibrium

CHM 116 Ch 15 I-Equilibrium - Chapter 15 Chemical...

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1 1 1 Chapter 15 Chemical Equilibrium z Chemical equilibrium is similar to the equilibrium states reached in evaporation of a liquid in a closed container or the dissolution of a solid to form a saturated solution. z Use a double arrow ( U ) to indicate the process is dynamic and reversible. 2NO 2 U N 2 O 4 red colorless + 2 Analogy to Chemical Equilibrium 3 15.1 The Concept of Equilibrium z At equilibrium, both reactants and products are present simultaneously. N 2 O 4 U 2NO 2 4 Butane Isomerization z butane U isobutane CH 3 CH 2 CH 2 CH 3 U CH 3 CHCH 3 CH 3 Initially Midway Equilibrium Cis-trans Equil Conc 5 Sample Problem z At which point does this system reach a state of equilibrium? 6 Rates at Equilibrium z Reactant concentrations decrease and product concentrations increase until they become constant at a state of equilibrium. Reaction continues in both directions, but at the same rate so there is no net change in concentration.
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This note was uploaded on 04/16/2008 for the course CHM 116 taught by Professor Unknown during the Spring '08 term at ASU.

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CHM 116 Ch 15 I-Equilibrium - Chapter 15 Chemical...

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