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CH 101 notes 10-15

CH 101 notes 10-15 - We are not going to fool with Mother...

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Thermodynamics Kinetics The study of energy & its transformations Energy content of reactants & products Enthalpy Heat content Entropy Disorder Will the rxn happen? Section 9.0 How fast & by what mechanism will the reaction occur? Mother Nature Heat Miser Cold Miser We are not going to fool with Mother Nature. We are just going to try to understand her. In thermodynamic terms, reactions in which energy is lost are preferred (also know as exothermic) What happens in Jurassic Park when Mother Nature is in charge? #1 – The fences lose energy. What happens in Jurassic Park when we let Mother Nature have her way? #2 – The dinosaurs spread out over the park. In thermodynamic terms, reactions in which energy is spread out are preferred (also know S > 0) Section 9.1 Energy is neither created nor destroyed in any process. The “form” of the energy can change in a process. Heat: disorganized energy something we feel Work: organized energy something we see E system = q + w Heat: disorganized E Work: organized E E univ = E system + E sur = ZERO q > 0: heat is absorbed by the system q < 0:
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