Abstract:
In a recently developed simple particle mechanics model
in which a single particle represents the working fluid (gas) in
a heat engine (exemplified by a piston engine) a new approach
was outlined for the teaching of concepts to thermodynamic
students. By mechanics reasoning a model was developed that
demonstrates the connection berween the Carnot efficiency
limitation of heat engines and the Kelvin-Planck statement of
Second Law requiring only the truth of the Clausius statement.
In this paper the model is extended to introduce entropy. Here
the particle's entropy is defined as a function of its kinetic
energy and the space that it occupies that is analogous to that
normally found in classical macroscopic analyses.