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Definitions of Second Law of Thermodynamics on the Web:
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Each time energy is converted from one form to another, some of the energy is always degraded to a lower-quality, more dispersed, less useful form. 2. No system can convert energy from one form to another useful for with 100 percent efficiency. 3. Energy cannot be spontaneously transferred from a cold body to a hot body. 4. The entropy of a system increases over time.
www.uwsp.edu/cnr/wcee/keep/Mod1/Unitall/definitions.htm
All systems tend toward disorder.
www.ametsoc.org/amsedu/WES/glossary.html
An inequality that is fundamentally different from the first law because it specifies the direction in which a natural process will evolve rather than merely requiring that certain quantities are conserved. As formulated by Planck, the second law asserts that a thermodynamic state function, S, known as entropy, exists for all physical systems. ...
amsglossary.allenpress.com/glossary/browse
The notion that natural processes that occur in an isolated system are spontaneous when they lead to an increase in disorder, or entropy.
xenon.che.ilstu.edu/genchemhelphomepage/glossary/s.html
when energy is transformed, it becomes less useful; every process increases the disorder of the universe; no process is 100% efficient
employees.csbsju.edu/wlamberts/bio115/vocab/04vocab2.htm
Entropy - The tendency of an energy system to run down; systems go from a higher to a lower state of order. Entropy is the scientific description of creation under the curse of sin, therefore decay, death and degeneration. Evolution espouses that organisms move from a lesser state of organization to a higher state, or up hill (microbes to man) and therefore is diametrically opposed to, and breaks this Second Law of Thermodynamics!
members.aol.com/adobebill/f_Glossary.html
Whenever you do something, the universe gets more random.
misterguch.brinkster.net/vocabulary.html
?G = ?H - T?S where ?G is the change in Gibbs' Free-Energy and ?S is the change in entropy. The second law of thermodynamics states that for a reaction to be 'spontaneous', ?G must be negative overall. Another way of stating this is that for a reaction to be spontaneous, the overall entropy increase must be positive.
www.everyscience.com/Chemistry/Glossary/S.php
Naturally occurring processes are directional.
highered.mcgraw-hill.com/sites/0072480823/student_view0/glossary.html
With each change in form, some energy is degraded to a less useful form and given off into the surroundings, usually as low-quality heat. See also first law of thermodynamics.
www.environment.nelson.com/0176169040/glossary.html
A statement of our experience that there is a direction to the way events occur in nature. When a process occurs spontaneously in one direction, it is nonspontaneous in the reverse direction. -
www.tu-cottbus.de/BTU/Fak1/AnorgCh/2526Keyterms.htm
The degree of randomness in the universe increases in any spontaneous process.
www.hillsdale.edu/AcademicAssociations/Chemistry/science101/gloss4.html
heat will never of itself flow from one object to another of higher temperature.
www.nksd.net/schools/nkhs/staff/john_daneau/cp_glossary.htm
a law stating that mechanical work can be derived from a body only when that body interacts with another at a lower temperature; any spontaneous process results in an increase of entropy
wordnet.princeton.edu/perl/webwn
In physics, the second law of thermodynamics, in its many forms, is a statement about the quality and direction of energy flow, and it is closely related to the concept of entropy.
en.wikipedia.org/wiki/Second_law_of_thermodynamics