MathLiveEntropy change in classical thermodynamics
Defines entropy change as the integral of reversible heat transferred divided by the absolute temperature along a process from an initial state to a final state. It is used to calculate how much entropy a system gains or loses in a reversible process.
\Delta S=\int_{i}^{f} \frac{\delta Q_{\text{rev}}}{T}What the symbols mean
| change in entropy of the system from the initial to the final state (J/K) | |
| infinitesimal amount of heat transferred reversibly (J) | |
| absolute temperature at which the heat is transferred (K) | |
| initial state of the process | |
| final state of the process |
About this formula
- FieldPhysics
- TopicThermodynamics
- LevelUniversity
- Also calledClausius entropy, entropy change reversible process, entropy integral, entropy definition thermodynamics, heat divided by temperature entropy, entropy classical thermodynamics
- SourceWikidata Q5380792
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