Thermodynamic properties of multicomponent systems and hole theory

For the first time hole theory is applied to calculate isothermal compressibility, thermal expansivity, ultrasonic velocity and internal pressure of ternary and quaternary liquid mixture. The obtained calculated values are compared with experimental findings. A fairly good agreement is found. The results of calculations show that for all the systems under consideration, the calculated values of various thermodynamic parameters show the same trend as observed experimentally.