Glossary · term

Entropy

Thermodynamics

Aliases
entropies
Domain
Thermodynamics

Definition

A measure of how many microscopic arrangements a system could be in and still look the same from outside — equivalently, of energy that can no longer do work. It never decreases in a closed system, which is the second law.

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From the Glossary database in Notion, last edited 2026-08-17. This page is the row, rendered by the build; nothing on it is written by hand.