The Macro and Micro of it Is that Entropy Is the Spread of Energy
While entropy is often described as “disorder,” it is better thought of as a measure of how spread out energy is within a system. To illustrate this interpretation of entropy to introductory college or high school students, several activities have been created. Students first study the relationship...
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| Veröffentlicht in: | The Physics teacher 2016-09, Vol.54 (6), p.344-347 |
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| container_title | The Physics teacher |
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| creator | Phillips, Jeffrey A. |
| description | While entropy is often described as “disorder,” it is better
thought of as a measure of how spread out energy is within a system. To
illustrate this interpretation of entropy to introductory college or high school
students, several activities have been created. Students first study the
relationship between microstates and macrostates to better understand the
probabilities involved. Then, each student observes how a system evolves as
energy is allowed to move within it. By studying how the class’s ensemble of
systems evolves, the tendency of energy to spread, rather than concentrate, can
be observed. All activities require minimal equipment and provide students with
a tactile and visual experience with entropy. |
| doi_str_mv | 10.1119/1.4961175 |
| format | Article |
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illustrate this interpretation of entropy to introductory college or high school
students, several activities have been created. Students first study the
relationship between microstates and macrostates to better understand the
probabilities involved. Then, each student observes how a system evolves as
energy is allowed to move within it. By studying how the class’s ensemble of
systems evolves, the tendency of energy to spread, rather than concentrate, can
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illustrate this interpretation of entropy to introductory college or high school
students, several activities have been created. Students first study the
relationship between microstates and macrostates to better understand the
probabilities involved. Then, each student observes how a system evolves as
energy is allowed to move within it. By studying how the class’s ensemble of
systems evolves, the tendency of energy to spread, rather than concentrate, can
be observed. All activities require minimal equipment and provide students with
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thought of as a measure of how spread out energy is within a system. To
illustrate this interpretation of entropy to introductory college or high school
students, several activities have been created. Students first study the
relationship between microstates and macrostates to better understand the
probabilities involved. Then, each student observes how a system evolves as
energy is allowed to move within it. By studying how the class’s ensemble of
systems evolves, the tendency of energy to spread, rather than concentrate, can
be observed. All activities require minimal equipment and provide students with
a tactile and visual experience with entropy.</abstract><pub>American Association of Physics Teachers</pub><doi>10.1119/1.4961175</doi><tpages>4</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0031-921X |
| ispartof | The Physics teacher, 2016-09, Vol.54 (6), p.344-347 |
| issn | 0031-921X 1943-4928 |
| language | eng |
| recordid | cdi_crossref_primary_10_1119_1_4961175 |
| source | American Institute of Physics (AIP) Journals |
| subjects | College Students Educational Practices Energy High School Students Introductory Courses Science Activities Teaching Methods Thermodynamics |
| title | The Macro and Micro of it Is that Entropy Is the Spread of Energy |
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