different between entropy vs confusion
entropy
English
Etymology
First attested in 1867, as the translation of German Entropie, coined in 1865 by Rudolph Clausius in analogy to Energie (“energy”), replacing the root of Ancient Greek ????? (érgon, “work”) by Ancient Greek ????? (trop?, “transformation”)).
Pronunciation
- IPA(key): /??nt??pi/
Noun
entropy (countable and uncountable, plural entropies)
- A measure of the disorder present in a system.
- Ludwig Boltzmann defined entropy as being directly proportional to the natural logarithm of the number of microstates yielding an equivalent thermodynamic macrostate (with the eponymous constant of proportionality). Assuming (by the fundamental postulate of statistical mechanics), that all microstates are equally probable, this means, on the one hand, that macrostates with higher entropy are more probable, and on the other hand, that for such macrostates, the quantity of information required to describe a particular one of its microstates will be higher. That is, the Shannon entropy of a macrostate would be directly proportional to the logarithm of the number of equivalent microstates (making it up). In other words, thermodynamic and informational entropies are rather compatible, which shouldn't be surprising since Claude Shannon derived the notation 'H' for information entropy from Boltzmann's H-theorem.
- (thermodynamics, countable) strictly thermodynamic entropy. A measure of the amount of energy in a physical system that cannot be used to do work.
- The thermodynamic free energy is the amount of work that a thermodynamic system can perform; it is the internal energy of a system minus the amount of energy that cannot be used to perform work. That unusable energy is given by the entropy of a system multiplied by the temperature of the system.[1] (Note that, for both Gibbs and Helmholtz free energies, temperature is assumed to be fixed, so entropy is effectively directly proportional to useless energy.)
- The capacity factor for thermal energy that is hidden with respect to temperature [2].
- The dispersal of energy; how much energy is spread out in a process, or how widely spread out it becomes, at a specific temperature. [3]
- (statistics, information theory, countable) A measure of the amount of information and noise present in a signal.
- (uncountable) The tendency of a system that is left to itself to descend into chaos.
Synonyms
- anergy
- bound entropy
- disgregation
Antonyms
- aggregation
- exergy
- free entropy
- negentropy
Derived terms
See also
- chaos
Translations
Further reading
- entropy in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
- entropy in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
- entropy at OneLook Dictionary Search
Anagrams
- Poynter, peryton
entropy From the web:
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confusion
English
Etymology
Borrowed from Old French confusion, from Latin confusio, confusionem.
Pronunciation
- IPA(key): /k?n?fju???n/
- Rhymes: -u???n
Noun
confusion (usually uncountable, plural confusions)
- A lack of clarity or order.
- The state of being confused; misunderstanding.
- The act of mistaking one thing for another or conflating distinct things.
- Lack of understanding due to dementia.
- (archaic) A state of shame or embarrassment.
Synonyms
- (lack of clarity or order): discombobulation
- (state of being confused): bewilderment, disarray
Antonyms
- (lack of clarity or order): clarity
- (misunderstanding): distinction
Translations
French
Etymology
From Middle French confusion, from Old French confusion, borrowed from Latin confusio, confusionem, from verb confundo.
Pronunciation
- IPA(key): /k??.fy.zj??/
Noun
confusion f (plural confusions)
- confusion
Derived terms
- prêter à confusion
Further reading
- “confusion” in Trésor de la langue française informatisé (The Digitized Treasury of the French Language).
Middle French
Etymology
From Old French confusion.
Noun
confusion f (plural confusions)
- confusion
Descendants
- French: confusion
Old French
Etymology
Borrowed from Latin confusio, confusionem.
Noun
confusion f (oblique plural confusions, nominative singular confusion, nominative plural confusions)
- spread (act or instance of spreading)
Descendants
- English: confusion
- Middle French: confusion
- French: confusion
confusion From the web:
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