Look up: Entropy

1. Entropy
   A thermodynamic state or property that measures the degree of disorder or randomness of a system. For more information see Thermochemistry
   Found on http://home.nas.net/~dbc/cic_hamilton/di
   
   
2. Entropy
   A measure of the number of possible states a group of 'somethings can occupy' - the more possible ways the group can be arranged, the higher the entropy. For example, there are fewer possible configurations of students in chairs in a room where the chairs are bolted to the floor than where the chairs can be moved around - the room with fewer possibilities will have less entropy, and more order... It's also interesting that the entropy of the universe is always increasing, so any process that giv…
   Found on http://www.kcpc.usyd.edu.au/discovery/gl
   
   
3. Entropy
   A measure of a system's degree of randomness or disorder.
   Found on http://mitpress.mit.edu/books/FLAOH/cbnh
   
   
4. Entropy
   The degree of randomness or disorder in a system.
   Found on http://www.pestmanagement.co.uk/lib/glos
   
   
5. Entropy
   In thermodynamics entropy is the amount of energy not available to do work.
   Found on http://www.geologyrocks.co.uk/glossary/l
   
   
6. entropy
   [n] - (thermodynamics) a measure of the amount of energy in a system that is no longer available for doing work
   Found on http://www.webdictionary.co.uk/definitio
   
   
7. entropy
   A quantity that determines the direction of processes in thermodynamical systems. See Gian's introductory article.
   Found on http://www.maxwellian.demon.co.uk/faq/gl
   
   
8. Entropy
   Measure of the disorder of a system.whereS = Experimental entropydQ_rev = Heat supplied to system, reversible changedQ = Heat supplied to systemT = Temperature
   Found on http://www.diracdelta.co.uk/science/sour
   
   
9. Entropy
   The average amount of information represented by a symbol in a message, is a function of the model used to produce that message and can be reduced by increasing the complexity of the model so that it better reflects the actual distribution of source symbols in the original message. Entropy is a measure of the information contained in message, it's …
   Found on http://www.diracdelta.co.uk/science/sour
   
   
10. Entropy
    a measure of the unavailability of the thermal energy within a system for conversion into mechanical work All energy transformations (i.e. chemical to chemical, chemical to thermal) increase entropy.
    Found on http://www.bio-power.co.uk/glossary.htm
    
    
11. Entropy
    A thermodynamic state or property that measures the degree of disorder or randomness of a system.
    Found on http://www.allchemicals.info/index/actio
    
    
12. entropy
    (S) Entropy is a measure of energy dispersal. Any spontaneous change disperses energy and increases entropy overall. For example, when water evaporates, the internal energy of the water is dispersed with the water vapor produced, corresponding to an increase in entropy.
    Found on http://antoine.frostburg.edu/chem/senese
    
    
13. entropy
    Entropy (S) is a measure of the unavailability of a system's energy to do work; in a closed system, an increase in entropy is accompanied by a decrease in energy availability. When a system undergoes a reversible change the entropy (S) changes by an amount equal to the energy (Q) transferred to the system by heat divided by the thermodynamic temper…
    Found on http://www.ktf-split.hr/periodni/en/abc/
    
    
14. Entropy
    A measure of the disorder of a system.
    Found on http://www.chemicalglossary.net/definiti
    
    
15. Entropy
    Measure of the disorder of a system.
    Found on http://www.chemicalglossary.net/definiti
    
    
16. entropy
    Measure of the disorder of a system.
    Found on http://www.shodor.org/UNChem/glossary.ht
    
    
17. Entropy
    A measure of the disordered, degraded energy that is unavailable for work.
    Found on http://www.i-sis.org.uk/Glossary.php
    
    
18. Entropy
    A measure of the disorder of a system. Used as a measure of heat content.
    Found on http://www.mpoweruk.com/glossary.htm
    
    
19. entropy
    (database, specification) An approach to data modelling proposed by P. Chen in 1976. The model says that you divide your database in two logical parts, entities (e.g. "customer", "product") and relations ("buys", "pays for"). Entity-relationship diagrams can be used to represent a model. ["The entity-relationship model: toward a unified view of da…
    Found on http://foldoc.org/
    
    
20. entropy
    a measure of the amount of disorder in a system,i.e.the more disorder in the system,the higher the entropy Category: Automation (includes telecommunications and computers) • function of state whose differential during a reversible transformation is dS = delta Q/T,where delta Q is the thermal energy supplied to the physical system by the external environment at thermodynamic temperature…
    Found on http://www.mijnwoordenboek.nl/definition
    
    
21. Entropy
    Definition (keystage 3) A measure of how much disorder there is in a system; it is related to the probability of the system being in a state which is indistinguishable from the one it is in. So a highly organised, unusual state has low entropy, but an ordinary state that looks the same as millions of others has high entropy. <br /> The second …
    Found on http://thesaurus.maths.org/mmkb/entry.ht
    
    
22. Entropy
    En"tro·py noun [ Greek ... a turning in; ... in + ... a turn, from ... to turn.] (Thermodynamics) A certain property of a body, expressed as a measurable quantity, such that when there is no communication of heat the quantity remains constant, but when heat enters or leaves the body the quantity increases or diminishes. If a small amount, h , of heat enters the body when its temperature is …
    Found on http://www.encyclo.co.uk/webster/E/50
    
    
23. entropy
    <radiobiology> The amount of disorder in a system. ... (09 Oct 1997) ...
    Found on http://cancerweb.ncl.ac.uk/cgi-bin/omd?e
    
    
24. entropy
    S noun (thermodynamics) a thermodynamic quantity representing the amount of energy in a system that is no longer available for doing mechanical work; `entropy increases as matter and energy in the universe degrade to an ultimate state of inert uniformity`
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
25. Entropy
    In physics, `entropy`, symbolized by `S`, is a measure of the unavailability of a system`s energy to do work. Entropy is central to the second law of thermodynamics and the combined law of thermodynamics, which deal with physical processes and whether they occur spontaneously. Spontaneous changes, in isolated systems, occur with an increase in entropy. Spontaneous changes tend to smooth out differences in temperature, pressure, density, and chemi...
    Found on http://en.wikipedia.org/wiki/Entropy