Invariance of the laws of projective transformations of specific parameters for an ideal one-component gas.

The article is devoted to the study of the physical properties of gas. It discusses the concept of projective differential geometry. The invariance of the laws of thermodynamics with respect to projective transformations of specific parameters is shown on the example of an ideal single-component gas. The basic relations of projective differential geometry are also proved, as well as the invariance of all essential laws in thermodynamics with respect to projective transformations of specific parameters. [ABSTRACT FROM AUTHOR]