@article{10902/31363,
year = {2024},
month = {3},
url = {https://hdl.handle.net/10902/31363},
abstract = {Two thermodynamic processes, an adiabatic gas compression and an isothermal gas compression, taking place in a moving lab are analysed using a four-vector fundamental equation, dEμ = δWμ + δQμ , a relativistic generalization of the first law of thermodynamics dE = δW + δQ. These processes are first described in frame S, with the lab at rest, and then in frame S¯, moving with constant velocity relative to S. This formalism shows that Lorentz transformation preserves the principle of relativity in thermodynamics. The physical meaning of the norm of a four-vector is analysed, and Clausius definition of entropy variation is generalised to relativity. The classical description of the process is obtained in a moving lab by taking the low-speed limit in the four-vector fundamental equation. The formalism naturally incorporates the role of the laws of mechanics when analysing processes that are typically considered as purely thermodynamic.},
publisher = {Institute of Physics Publishing},
publisher = {European Journal of Physics, 2024, 45(2), 015701},
title = {Relativistic mechanics and thermodynamics: IV. Thermodynamic processes},
author = {Güemez Ledesma, Julio and Mier Maza, José Ángel},
}