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Clausius: thermodynamic entropy and the second law

Contribution grade

Thermodynamics · Scoped scientific or research-capability contribution

Reference score350,000Provisional editorial estimate of this exact contribution; its grade is assessed separately.

What changed

Introduced the named state quantity entropy and related reversible heat exchange to temperature while expressing the direction of irreversible change.

Scientific scope

Introduced the named state quantity entropy and related reversible heat exchange to temperature while expressing the direction of irreversible change. Scope limitation: This is the historical macroscopic thermodynamic formulation, separate from Boltzmann’s later statistical account. Its language about the universe is retained in historical context, without converting it into a modern cosmological theorem.

Evidence

Assessment uses the catalogue-linked source evidence for the stated contribution. This is the historical macroscopic thermodynamic formulation, separate from Boltzmann’s later statistical account. Its language about the universe is retained in historical context, without converting it into a modern cosmological theorem.

Contributors

Provisional WRS assessment, edition 2026-10-16.1. Independent expert calibration is pending. This grade does not certify correctness or assign ownership.

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