Keyword Analysis & Research: entropy
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Entropy - Wikipedia
https://en.wikipedia.org/wiki/Entropy
a measure of a system's thermal energy per unit temperature that is unavailable for doing useful work. [61] In Boltzmann's analysis in terms of constituent particles, entropy is a measure of the number of possible microscopic states (or microstates) of a system in thermodynamic equilibrium.
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Introduction to entropy - Wikipedia
https://en.wikipedia.org/wiki/Introduction_to_entropy
The word 'entropy' has entered popular usage to refer a lack of order or predictability, or of a gradual decline into disorder. [1] A more physical interpretation of thermodynamic entropy refers to spread of energy or matter, or to extent and diversity of microscopic motion.
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Entropy Definition & Meaning - Merriam-Webster
https://www.merriam-webster.com/dictionary/entropy
Entropy is the general trend of the universe toward death and disorder. James R. Newman. b. : a process of degradation or running down or a trend to disorder. The deterioration of copy editing and proof-reading, incidentally, is a token of the cultural entropy that has overtaken us in the postwar years. John Simon. 3.
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What Is Entropy? Definition and Examples - Science Notes and …
https://sciencenotes.org/what-is-entropy-definition-and-examples/
Nov 28, 2021 · Entropy 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 …
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Entropy (information theory) - Wikipedia
https://en.wikipedia.org/wiki/Entropy_(information_theory)
Generally, information entropy is the average amount of information conveyed by an event, when considering all possible outcomes. The concept of information entropy was introduced by Claude Shannon in his 1948 paper "A Mathematical Theory of Communication", [2] [3] and is also referred to as Shannon entropy.
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12.3 Second Law of Thermodynamics: Entropy - OpenStax
https://openstax.org/books/physics/pages/12-3-second-law-of-thermodynamics-entropy
The second law of thermodynamics states that the total entropy of a system either increases or remains constant in any spontaneous process; it never decreases. An important implication of this law is that heat transfers energy spontaneously from higher- to lower-temperature objects, but never spontaneously in the reverse direction.
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Entropy | Definition & Equation | Britannica
https://www.britannica.com/science/entropy-physics
Feb 15, 2024 · entropy, 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, the amount of entropy is also a measure of the molecular disorder, or randomness, of a system.
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4.7: Entropy - Physics LibreTexts
https://phys.libretexts.org/Bookshelves/University_Physics/University_Physics_(OpenStax)/Book%3A_University_Physics_II_-_Thermodynamics_Electricity_and_Magnetism_(OpenStax)/04%3A_The_Second_Law_of_Thermodynamics/4.07%3A_Entropy
Sep 12, 2022 · The second law of thermodynamics is best expressed in terms of a change in the thermodynamic variable known as entropy, which is represented by the symbol S. Entropy, like internal energy, is a state function.
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Lecture 6: Entropy - Scholars at Harvard
https://scholar.harvard.edu/files/schwartz/files/6-entropy.pdf
1 Introduction. In this lecture, we discuss many ways to think about entropy. The most important and most famous property of entropy is that it never decreases. Stot > 0. (1) Here, Stot means the change in entropy of a system plus the change in entropy of the surroundings.
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Entropy: The Invisible Force That Brings Disorder to the Universe
https://science.howstuffworks.com/entropy.htm
Nov 30, 2023 · 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. This tendency for energy to disperse is often represented by the term Temperature T.
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