Linked from
The 22 pages that link to Thermodynamic temperature, each with the reason it gives.
Ideal gasRelated: The ideal gas law requires absolute temperature rather than Celsius.
Gas constantRelated: R converts this temperature scale into molar energy in thermodynamic relations.
Charles's lawRelated: Its absolute scale makes direct proportionality meaningful.
Clausius theoremRelated: It supplies the denominator for each heat transfer.