9tdynamics - 1 Thermodynamics is the study of the...

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Unformatted text preview: 1 Thermodynamics is the study of the relationships between heat and work. The first law and second law of thermodynamics constrain the operation of a heat engine. The first law is the application of conservation of energy to the system, and the second sets limits on the possible efficiency of the machine and determines the direction of energy flow. 2 Internal Energy Internal energy is defined as the energy associated with the random, disordered motion of molecules. U is the most common symbol used for internal energy. 3 Microscopic Energy Internal energy involves energy on the microscopic scale. For an ideal monoatomic gas, this is just the translational kinetic energy of the linear motion of the "hardsphere type atoms , and the behavior of the system is well described by kinetic theory. However, for polyatomic gases there is rotational and vibrational kinetic energy as well. Then in liquids and solids there is potential energy associated with the intermolecular attractive forces. intermolecular attractive forces....
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This note was uploaded on 01/02/2012 for the course PHYS 1149 taught by Professor Bala during the Fall '11 term at Northeastern.

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9tdynamics - 1 Thermodynamics is the study of the...

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