CH-1010 Chapter Notes - Chapter 9: Exothermic Process, Endothermic Process, Internal Energy
14 Nov 2016
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Document Summary
Chemical energy- potential energy stored in chemical bonds. Internal energy (e)- the sum of all the kinetic and potential energies of all of the components of a system. Thermochemistry- the study of the changes in energy that accompany chemical reactions. Thermodynamics- the study of energy and its transformations. First law of thermodynamics- the principle that the energy gained or lost by a system must equal the energy lost or gained by the surroundings. System- the part of the universe that is the focus of a thermochemical study. Surroundings- everything in a thermochemical study that is not part of the system. State function- a property of an entity based solely on its chemical or physical state or both, but not on how it achieved that state. Thermal energy- the portion of the total internal energy of a system that is proportional to its absolute temperature.
