Chemistry / Chem 2069 · Atom · ~20 seconds
Entropy as a Microstate-Counted State Function
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State
Entropy is a state function, per Chem 0675, and counts the microstates consistent with a system's current condition, rising whenever that count rises.
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A gas expanding into a larger volume gains far more particle positions, so its entropy rises.
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Entropy is not energy despite its joule units, and no single particle "has" entropy.
Unlocks
- 2071Twin: Entropy Is Not Disorder
- 2074Entropy Rises with Accessible Microstates
- 2077Entropy Trend Across Phases
- 2080Entropy Rises with Temperature
- 2083Entropy Rises with Molecular Complexity
- 2084Entropy Rises with Mixing
- 2090The Second Law of Thermodynamics
- 2093The Third Law of Thermodynamics
- 2103Gibbs Free Energy Defined
- 2124ΔG as a Path-Independent State Function