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phy131studiof15:lectures:chapter21 [2015/11/18 09:21]
mdawber [Molar Specific Heat for Gases]
phy131studiof15:lectures:chapter21 [2015/11/18 09:21] (current)
mdawber [Vibrational degrees of freedom]
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 ===== Vibrational degrees of freedom ===== ===== Vibrational degrees of freedom =====
  
-As well as moving and rotating molecules can vibrate. However these modes are typically "​frozen out" in simple molecules at room temperature. As molecules get more complicated the vibrational modes start to contribute to the specific heat. If we cool a gas down we can the rotational degrees of freedom in gas can also become frozen. Quantum theory is required to explain why the number of active modes is dependent on temperature!+As well as moving and rotating molecules can vibrate. However these modes are typically "​frozen out" in simple molecules at room temperature. As molecules get more complicated the vibrational modes start to contribute to the specific heat. If we cool a gas down the rotational degrees of freedom in gas can also become frozen. Quantum theory is required to explain why the number of active modes is dependent on temperature!
  
 {{DiatomicSpecHeat1.png?​600}} {{DiatomicSpecHeat1.png?​600}}
phy131studiof15/lectures/chapter21.txt ยท Last modified: 2015/11/18 09:21 by mdawber
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