Thermodynamics within the Framework of Classical Mechanics
V. M. Somsikov
Abstract
The approach to a substantiation of thermodynamics is offered. A conservative system of interacting elements, which is not in equilibrium, is used as a model. This system is then split into small subsystems that are accepted as being in equilibrium. Based on the D'Alambert equation for a subsystem the generalized Liouville equation is obtained. A necessary condition for irreversibility is determined. This condition is dependence the forces of interaction of subsystems on relative velocities. The equation of motion of subsystems of potentially interacting elements is obtained. The non-potentiality of the forces of interaction of the subsystems consisting of potentially interacting elements is proved. The mechanism of occurrence of irreversible dynamics is offered. The formula that expresses the entropy through the forces of interaction of subsystems is obtained. The theoretical link between classical mechanics and thermodynamics is analyzed.
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