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Bookmark or Share- What Is Entropy? - ThoughtCoEntropy is a measure of the randomness or disorder of a system. The value of entropy depends on the mass of a system. It is denoted by the letter S and has units of joules per kelvin. Entropy can have a positive or negative value.
- What Is Entropy? Definition and Examples - Science Notes and ProjectsEntropy is a measure of the randomness or disorder of a system. Its symbol is the capital letter S. Typical units are joules per kelvin (J/K). Change in entropy can have a positive (more disordered) or negative (less disordered) value. In the natural world, entropy tends to increase.
- Entropy: The Invisible Force That Brings Disorder to the UniverseThe Definition of Disorder. It's harder than you'd think to find a system that doesn't let energy out or in — our universe is a good example of that — but entropy describes how disorder happens in a system as large as the universe or as small as a thermos full of coffee.
- Entropy | Definition & Equation | BritannicaEntropy, the measure of a system’s thermal energy per unit temperature that is unavailable for doing useful work. Because work is obtained from ordered molecular motion, entropy is also a measure of the molecular disorder, or randomness, of a system.
- Entropy (information theory) - WikipediaIn information theory, the entropy of a random variable is the average level of "information", "surprise", or "uncertainty" inherent to the variable's possible outcomes.
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