Lecture_Notes_100509a

Lecture_Notes_100509a - Lecture Note 10/5/2009

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THERMOCHEMISTRY Zumdahl Chapter 6
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Law of Conservation of Energy y Energy can be converted from one form to another but can neither be created nor destroyed
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Definitions y Energy- the capacity to do work y Kinetic Energy- energy of movement y Potential Energy- energy stored in a system by way of position and or composition
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Kinetic vs Potential Energy
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Definitions y Extensive- value depends on amount of substance y Intensive- value is independent of amount of substance y State Function- a property whose value does not depend on the path, only on the initial and final points.
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Definitions y Potential energy of chemical systems- chemical reactions either produce or consume heat y Thermodynamics- study of energy and its relationship to the universe y System- the part of the universe we are interested in y Surroundings- the rest of the universe y Universe- the system + the surroundings
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Work y A force acting over a distance y Dependent on the path chosen, the sign of work is viewed from the point of view of the system
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PV Work: Expansion
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This note was uploaded on 10/14/2009 for the course CHEM 105ALg at USC.

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Lecture_Notes_100509a - Lecture Note 10/5/2009

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