Chapter 20.docx

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Department
Chemistry
Course
CHM135H1
Professor
Dwayne Miller
Semester
Winter

Description
Chapter 20Second Law of Thermodynamics All real processes occur spontaneously in the direction that increases the entropy of the universe increasesS SS 0 universesystem surroundingsThird Law of Thermodynamics A perfect crystal has 0 entropy at absolute 0 0 KDefinition of the Gibbs Free Energy Gibbs Free Energy determines the spontaneity of a process and the useful available energy from it Using Free Energies to predict direction in chemical reactions0 spontaneous0 nonspontaneous 0 at equilibrium Relation of Gibbs Free Energy to maximum work WmaxWork is done by a system during a spontaneous reaction constant T and PWminWork is done on a system during a nonspontaneous reaction constant T and P Relation of Gibbs Free Energy to equilibria constants RTlnQRTlnKTemperature dependence of Gibbs Free Energyrelation to enthalpy and entropy Temperature indep
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