## Abstract

The usual method in nonequilibrium statistical mechanics allows the derivation of the balance equations only for the collision invariants (mass, momentum, energy) and only by a complete knowledge of the microscopic structure. In this paper the existence of the balance equation for an arbitrary physical quantity is proved for any corpuscular system satisfying the local equilibrium assumption, if the microscopic components obey the classical mechanics principles and can be generated or destroyed as a result of some instantaneous processes. We discuss the fundamental equations of the continuum mechanics for mass and momentum.

## Authors

C. **Vamos
**Tiberiu Popoviciu, Institute of Numerical Analysis, Romanian Academy

A. **Georgescu**

N. **Suciu
**Tiberiu Popoviciu, Institute of Numerical Analysis, Romanian Academy

I. **Turcu**

## Keywords

Nonequilibrium; balance equation; continuum mechanics

## Cite this paper as

C. Vamoş, A. Georgescu, N. Suciu, I. Turcu (1996), *Balance equations for physical systems with corpuscular structure*, Physica A, 227, 81-92, doi: 10.1016/0378-4371(95)00373-8

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