Linked from

The 80 pages that link to Entropy, each with the reason it gives.

• Thermodynamic free energyRelated: Its contribution sets how much energy is unavailable for work at a given temperature.

• Carnot heat engineRelated: Reversibility requires no net entropy production across the engine and reservoirs.

• Heat pump and refrigeration cycleRelated: Entropy balances reveal where real components generate irreversibility and lose performance.

• Laws of thermodynamicsRelated: The second and third laws govern entropy’s change and limiting value.

• TimeRelated: Increasing entropy helps explain why many macroscopic processes have a preferred direction.

• Timeline of the far futureRelated: The growth of entropy underlies predictions of a universe with diminishing usable energy.

• William GiauqueRelated: Magnetic cooling works by changing the entropy associated with aligned magnetic moments.