s mousavian - Sama technical and vocational training college, Islamic azad university, Gachsaran branch, Gachsaran, Iran
f mousavian - Sama technical and vocational training college, Islamic azad university, Gachsaran branch, Gachsaran, Iran
n ghazinia - Sama technical and vocational training college, Islamic azad university, Gachsaran branch, Gachsaran, Iran

Cubic equation of state (CEoS) has been used to describe thermodynamic properties of pure substances and mixtures. In particular, a CEoS predicts quite wellthe volumetric properties of liquid–vapor. In this research, a modified CEoS is proposed to predict volumetric properties of R-12. The results show thatproposed equation has good agreement with experimental data

Equation of state, van der wall’s equation, Refrigerant, PVT properties