Dear student,
µJT = ∂T/∂p
 At the inversion temperature the coefficient changes its sign.
 For higher temperatures it is negative and the gas heats up due to  expansion. For a temperature below the inversion temperature µJT is  positive and the expanding gas cools down.
 
 The importance of this temperature is in gas liquefaction. Processes  like the Linde process for air liquefaction need a positive coefficient.  Hence you can only operate at temperatures below the inversion  temperature.









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Sagar Singh
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							Relation between inverion temperature and Boyle`s Temperature is as follows:Ti is 2a/Kb and Tb is a/Kb so Ti/Tb=2/1. Hence Ti =2Tb .