Chemical_Equilibrium_S11

Chemical_Equilibrium_S11 - CHEMICAL EQUILIBRIUM GLY 4241 -...

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1 CHEMICAL EQUILIBRIUM GLY 4241 - Lecture 4 Spring, 2011
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2 Reactants to Products
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3 Reaction Completeness How far can the reaction proceed? Almost complete Neglible
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4 Speed of Reaction How fast does the reaction proceed? Very slow, unless ignited This is a kinetic problem, not a thermodynamic one
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5 Law of Mass Action Formulation First formulated by two Norwegian chemists, Cato Maximilian Guldberg & Peter Waage When the driving forces of the forward and back reactions become equal, equilibrium has been achieved
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6 Forward Reaction • Driving force of the forward reaction = k f [NaCl]
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7 Back Reaction • Driving force of the back reaction = k b [Na + ][Cl - ]
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8 Equilibrium • k f [NaCl] = k b [Na+][Cl-] K is called the equilibrium constant for the equation as written
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9 Law of Mass Action The rate of a reaction is directly proportional to the concentration of each reacting substance (Konrad Krauskopf) Concentration is a better term than mass
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Problems
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This document was uploaded on 03/29/2011.

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Chemical_Equilibrium_S11 - CHEMICAL EQUILIBRIUM GLY 4241 -...

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