Thermodynamics: Difference between revisions
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Added some more text because I believe one of the laws of thermodynamics was left out and although it is much more chemistry based I do believe it's important for it to be stated. Due to the additional information I also added 2 references. |
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Thermodynamics is the study of processes involving changes in temperature and transformation of energy<ref>Thermodynamic Concepts. Adapted from VW,S&amp;amp;B: Chapter 1 http://web.mit.edu/16.unified/www/FALL/thermodynamics/thermo_2.htm.</ref>. It also is important in describing the relationships between heat and [[Work|work]]. It can be used as an engineering tool for describing power and energy systems. | Thermodynamics is the study of processes involving changes in temperature and transformation of energy<ref>Thermodynamic Concepts. Adapted from VW,S&amp;amp;amp;B: Chapter 1 http://web.mit.edu/16.unified/www/FALL/thermodynamics/thermo_2.htm.</ref>. It also is important in describing the relationships between heat and [[Work|work]]. It can be used as an engineering tool for describing power and energy systems. | ||
There are 3 laws of thermodynamics. The first law states that energy can neither be created nor destroyed. This law states that the energy contained within the Earth always has and always will remain constant. The second law states that [[Entropy|entropy]], which the level of disorder within a system or the tendancy for things to move from a level of order to disorder, always increases as energy types are converted (e.g. heat to kinetic)<ref name="2">1. Fullick AMcDuell B. Edexcel A2 Chemistry. 1st ed. Essex: Pearson; 2009.</ref>. The third law of thermodynamics states that in a perfect crystal at 273K also known as absolute zero, the entropy is 0<ref name="3">Lucas J. What is the Third Law of Thermodynamics? [Internet]. Live Science. 2016 [cited 5 December 2016]. Available from: http://www.livescience.com/50942-third-law-thermodynamics.html</ref>. | |||
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Revision as of 12:29, 5 December 2016
Thermodynamics is the study of processes involving changes in temperature and transformation of energy[1]. It also is important in describing the relationships between heat and work. It can be used as an engineering tool for describing power and energy systems.
There are 3 laws of thermodynamics. The first law states that energy can neither be created nor destroyed. This law states that the energy contained within the Earth always has and always will remain constant. The second law states that entropy, which the level of disorder within a system or the tendancy for things to move from a level of order to disorder, always increases as energy types are converted (e.g. heat to kinetic)Cite error: Invalid <ref> tag; name cannot be a simple integer. Use a descriptive title. The third law of thermodynamics states that in a perfect crystal at 273K also known as absolute zero, the entropy is 0Cite error: Invalid <ref> tag; name cannot be a simple integer. Use a descriptive title.
References
- ↑ Thermodynamic Concepts. Adapted from VW,S&amp;amp;B: Chapter 1 http://web.mit.edu/16.unified/www/FALL/thermodynamics/thermo_2.htm.