05_Thermodynamics - The need for thermodynamics James Watt...

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James Watt 1736-1819 Prototype: 6 horsepower 20 years later: 190 horsepower. The need for thermodynamics
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“The enormous consumption of coals in the arts and manufactures, and in steam navigation, has excited the fears of . .. exhaustion of our mines. These apprehensions, however, may be allayed by the assurance [of] the highest mining and geological authorities, that the coal fields of Northumberland and Durham alone are sufficient to supply [us] for 1700 years, and . .. the great coal basin of South Wales will . .. supply the same demand for 2000 years longer.” Reverend Dionysius Lardner The STEAM ENGINE Familiarly Explained and Illustrated . 1827 Svante Arrhenius Foresight in the use of coal
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Pioneers in Thermodynamics James Prescott Joule 1818 -1889 William Thomson, 1st Baron Kelvin 1824 -1907 Mechanical equivalent of heat presented 1847 1871–1937 Ernest Rutherford Rutherford model of the atom: 1911
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Some Forms of Energy electrical kinetic energy associated with the flow of electrical charge heat or thermal energy kinetic energy associated with molecular motion light or radiant energy kinetic energy associated with energy transitions in an atom nuclear potential energy in the nucleus of atoms chemical potential energy due to the structure of the atoms, the attachment between atoms, the atoms’ relative position to each other in the molecule, or the molecules’ relative positions in the structure
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We define the system as the material or process that contains the energy changes we are studying. We define the surroundings as everything else in the universe. What we study is the
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This note was uploaded on 11/08/2011 for the course CHM 2045 taught by Professor Geiger during the Fall '08 term at University of Central Florida.

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05_Thermodynamics - The need for thermodynamics James Watt...

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