140a chap2

# 140a chap2 - Structure and Reactivity Chapter 2 Sections:...

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Structure and Reactivity Chapter 2 Sections: 0, 1, 2 (Table 2), 3, (Table 3), 4, 5 (Table 5 from Methane to Octane), (Table 6), 6, 7, 8. Exercises: 6, 7, 8, 9, 11, 12a, 14, 15, 16, 17, 18, 19. Problems: 20, 23i, 23ii, 24, 26, 27, 28, 29, 30, 31, 32, 33, 34, 36, 39, 42, 46, 47, 48, 49

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Kinetics and Thermodynamics Thermodynamics – The energy involved and the extent to which a reaction between reactants proceeds to products Kinetics – The rate at which the concentration of products and reactants change. Reaction velocity, or speed.
Kinetics and Thermodynamics Thermodynamics – The energy involved and the extent to which a reaction between reactants proceeds to products Kinetics – The rate at which the concentration of products and reactants change. Reaction velocity, or speed. When the reactants and products concentrations no longer change, the reaction is at equilibrium. Gibbs standard free energy change, Δ G o = -RTlnK Gas Constant R = 1.986 cal K -1 mol -1 T = Temperature in Kelvin (K) K = Equilibrium Constant

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Kinetics and Thermodynamics
Enthalpy and Entropy Enthalpy: The heat of a process at constant pressure Depends on the change in energy associated with bond strengths. For a reaction the enthalpy change will be related to the sum of bond strength energies across the reaction. Entropy: A measure of the disorder of a system. A reaction going from one species to two species is favorable in entropic terms because energy is dispersed over more species than at the starting point.

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Kinetics – Reaction Rate Molecules react when they undergo productive collisions. Heating a reaction mixture increases the energy of the molecules
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## 140a chap2 - Structure and Reactivity Chapter 2 Sections:...

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