On the reduced form of thermodynamic coefficients of real gases

A form of writing the relationships that determine the physical parameters (thermodynamic coefficients) based on the equations of state of real gases is proposed. For each ratio, the main dimensionless part, expressed in terms of the given thermodynamic variables, is singled out. An explicit form of the reduced relations for the van der Waals, Redlich–Kwong and Soave–Redlich–Kwong equations of state is obtained. The graphs of coefficients in the given variables are constructed.