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11 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Spontaneous Process |
A process that does occur under a specific set of conditions. |
A reaction that results in a Decrease in the energy of a system often is spontaneous. |
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Nonspontaneous |
A process that does not occur under a specific set of conditions |
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Delta S system. |
The difference in entropy of the final State and the entropy of the initial state. |
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Standard Entropy |
The absolute entropy of a substance at 1 atm. Temp must be specified. |
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Trends in Entropy |
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Delta S rxn |
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Increase in Entropy |
Several Processes that lead to an increase in entropy are. Melting, Vaporization or Sublimation, Temperature increase, Reaction resulting in a greater number of gas molecules. |
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Second Law of Thermodynamics |
States that for a process to be spontaneous Delta S universe must be positive. |
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Example: Second Law of Thermodynamics |
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Third Law of Thermodynamics |
States that the entropy of a perfect crystalline substance is zero at absolute serotonin. |
Entropy Increases in a substance as temperature increases from absolute zero. |
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Gibbs Free Energy |
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