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Название: A mechanical definition of the thermodynamic pressure
Автор: E. Presutti
A dynamical definition of pressure for grand-canonical Gibbs measures in bounded regions is rigorously discussed: It measures the momentum transferred to the walls of the container by the elastically colliding particles. The local pressureP(r, ) so obtained is proportional to the temperature and the local density at the boundaries of . This allows us to obtain a rigorous proof of the virial theorem of Clausius.