{"id":802,"date":"2019-06-17T19:23:52","date_gmt":"2019-06-17T19:23:52","guid":{"rendered":"https:\/\/courses.lumenlearning.com\/louisville-wm-physics\/?post_type=chapter&p=802"},"modified":"2019-10-31T15:51:27","modified_gmt":"2019-10-31T15:51:27","slug":"putting-it-together-energy-and-the-first-law-of-thermodynamics","status":"publish","type":"chapter","link":"https:\/\/courses.lumenlearning.com\/louisville-wm-physics\/chapter\/putting-it-together-energy-and-the-first-law-of-thermodynamics\/","title":{"raw":"Putting It Together: Energy and the First Law of Thermodynamics","rendered":"Putting It Together: Energy and the First Law of Thermodynamics"},"content":{"raw":"The First Law of Thermodynamics applies the principle of conservation of energy to thermodynamic systems where the energy can be transferred both through work and through heat.\u00a0 The first law helps highlight one of the critical misunderstandings students have with thermodynamics, that heat and temperature are the same thing.\u00a0 This isn\u2019t helped by the fact that we often describe the temperature of an object using terms like hot or cold, and if \u201chot\u201d is a description of temperature, then many students mistakenly think that heat must be as well.\u00a0 However, as the first law tells us, heat is a way that a system gains or loses energy.\u00a0 Temperature, on the other hand, is a measure of the total energy of a system.\u00a0 It is entirely possible for a system to lose energy as heat (meaning that `Q` is negative in the first law equation) but still increase its temperature, as\u00a0long as the energy transferred into the system as work was greater than the energy lost as heat.","rendered":"

The First Law of Thermodynamics applies the principle of conservation of energy to thermodynamic systems where the energy can be transferred both through work and through heat.\u00a0 The first law helps highlight one of the critical misunderstandings students have with thermodynamics, that heat and temperature are the same thing.\u00a0 This isn\u2019t helped by the fact that we often describe the temperature of an object using terms like hot or cold, and if \u201chot\u201d is a description of temperature, then many students mistakenly think that heat must be as well.\u00a0 However, as the first law tells us, heat is a way that a system gains or loses energy.\u00a0 Temperature, on the other hand, is a measure of the total energy of a system.\u00a0 It is entirely possible for a system to lose energy as heat (meaning that `Q` is negative in the first law equation) but still increase its temperature, as\u00a0long as the energy transferred into the system as work was greater than the energy lost as heat.<\/p>\n\n\t\t\t

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Candela Citations<\/h3>\n\t\t\t\t\t
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