CHAPTER_17_SUPPLEMENTS_II

CHAPTER_17_SUPPLEMENTS_II - CHAPTER 17 SUPPLEMENTS II...

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CHAPTER 17 SUPPLEMENTS II Examples of spontaneous processes Use your every day experience and the following examples to help you.
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Spontaneous processes and change in energy Spontaneous processes and change in entropy
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Enthalpy versus entropy Conditions which favor a spontaneous process are (1) exothermic (final state lower in energy) and (2) there is an increase of entropy for the process. What happens if it is exothermic and the entropy decreases or endothermic and the entropy increases for the system? It depends on the relative magnitude of the two terms. In addition, at high temperature the change in entropy is more important in determining the outcome and at low temperature the change in enthalpy or energy is more important. Entropy
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The following observation is correct because the entropies of gases tend to be large compared to the entropies of solids and liquids. Determining change in entropy 2
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This note was uploaded on 03/25/2011 for the course CHEM 126 taught by Professor Biolsi during the Spring '08 term at NJIT.

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CHAPTER_17_SUPPLEMENTS_II - CHAPTER 17 SUPPLEMENTS II...

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