CHEM 1A Chapter Notes - Chapter 6: Oil Reserves, Heat Capacity, Thermodynamics
Document Summary
The nature of energy: key definitions (p. 248) The first law of thermodynamics: there is no free lunch (p. 250) Measuring e for chemical reactions: constant-volume calorimetry (p. 262) Enthalpy: the heat evolved in a chemical reaction at constant pressure (p. 265) Determining enthalpies of reaction from standard enthalpies of formation (p. 273) Key concepts: the nature of energy and thermodynamics (6. 2, 6. 3) Energy, which is measured in the si unit of joules (j), is the capacity to do work. Work is the result of a force acting through a distance. Many different kinds of energy exist, including kinetic energy, thermal energy, potential energy, and chemical energy, a type of potential energy associated with the relative positions of electrons and nuclei in atoms and molecules. The first law of thermodynamics states that energy can be converted from one form to another, but the total amount of energy is always conserved.
