2010-02-10 - Equilibrium Constants

2010-02-10 - Equilibrium Constants - PROPERTIES OF...

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PROPERTIES OF SOLUTIONS: Ch 6 – Chemical Equilibrium References: - Chemical Principles, Steven S. Zumdahl, Fifth Edition, Houghton Mifflin Custom Publishing, Boston, MA - Professor Paul Mc Cord Notes, CH 302, University of Texas at Austin 1 Tell us whether we can expect a high or low concentration of product at equilibrium. It also allow us to predict the spontaneous direction of reaction in a reaction mixture of any composition EQUILIBRIUM CONSTANTS
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Equilibrium constant in terms of molar concentration of gases : b B a A d D c C P P P P K ) ( ) ( ) ( ) ( g dD g cC g bB g aA b B a A d D c C a a a a K reactants of activities products of activites K Often, we want to use molar concentration instead of pressure to discuss gas-phase equilibria         b a d c C B A D C K Alternative Forms of the Equilibrium Constant : 1) If we multiply a chemical equation by a factor n, we raise K (or K c ) to the nth power. 2)
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2010-02-10 - Equilibrium Constants - PROPERTIES OF...

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