chem 101 chapter 1

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Spontaneous Processes • Materials that possess high potential energy are less stable. • Processes in nature tend to occur on their own when the result is material with lower total potential energy. ü Processes that result in materials with higher total potential energy can occur, but generally will not happen without input of energy from an outside source. Tro, Principles of Chemistry: A Molecular Approach 34
Tro, Principles of Chemistry: A Molecular Approach 35 Changes in Energy • If a process results in the system having less potential energy at the end than it had at the beginning, the “lost” potential energy was converted into kinetic energy, which is released to the environment. • During the conversion of form, energy that is released can be harnessed to do work.
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Precision • Imprecision in measur
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Practice—What is the mass in kilo
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chem 101 chapter 1

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