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We use a thermodynamically consistent form of Tsallis distribution to studythe dependence of various thermodynamic quantities on the system size inhigh-energy collisions. The charged hadron spectra obtained in $p$+$p$, $p$+Pb,Xe+Xe, and Pb+Pb collisions at LHC are used to determine the energy density,pressure, particle density, entropy density, mean free path, Knudsen number,heat capacity, isothermal compressibility, expansion coefficient, and speed ofsound at the kinetic freeze-out surface. These quantities are studied as afunction of the system size. Notably, the rate of increase (or decrease) inthese thermodynamic variables is found to be more rapid in small systems suchas $p$+$p$ and $p$+Pb collisions than in large systems such as Xe+Xe and Pb+Pbcollisions. This may be due to the small volume of the hadronic system in smallcollision systems at kinetic freeze-out. It is observed that high-multiplicity$p$+$p$ collisions produce similar thermodynamic conditions as peripheralheavy-ion collisions at kinetic freeze-out.

System size dependence of thermodynamic variables at kinetic freeze-out in high-energy collisions using the Tsallis distribution