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The thermodynamic parameters like energy density, pressure, entropy density,temperature and particle density are determined from the transverse momentumdistributions of charged particles in Pb-Pb collisions at the LHC. The resultsshow a clear increase with the centrality and the beam energy in allparameters. It is determined that in the final freeze-out stage the energydensity reaches a value of about 0.039 GeV/fm$^3$ for the most centralcollisions at $\sqrt{s_{NN}}$ = 5.02 TeV. This is less than that at chemicalfreeze-out where the energy density is about 0.36 GeV/fm$^3$. This decreaseapproximately follows a $T^4$ law. The results for the pressure and entropydensity are also presented for each centrality class at $\sqrt{s_{NN}}$ =  2.76 and 5.02 TeV.

Energy density at kinetic freeze-out in Pb-Pb collisions at the LHC using the Tsallis distribution