chapter11 - Chapter11 EnergyinThermalProcesses...

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    Chapter 11 Energy in Thermal Processes
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Energy Transfer When two objects of different temperatures  are placed in thermal contact, the  temperature of the warmer decreases and the  temperature of the cooler increases The energy exchange ceases when the  objects reach thermal equilibrium The concept of energy was broadened from  just mechanical to include internal Made Conservation of Energy a universal law of  nature
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Heat Compared to  Internal Energy Important to distinguish between them They are not interchangeable They mean very different things when  used in physics
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Internal Energy Internal Energy , U, is the energy associated  with the microscopic components of the  system Includes kinetic and potential energy associated  with the random translational, rotational and  vibrational motion of the atoms or molecules Also includes any potential energy bonding the  particles together
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Heat Heat  is the transfer of energy between a  system and its environment because of 
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chapter11 - Chapter11 EnergyinThermalProcesses...

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