Abstract
March, Perrot and Tosi [Mol. Phys. 93, 355 (1998)] proposed three structural integrals I 0, I 1 and I 2 to account for the liquid–vapour critical point (LVCP) based on the virial expression for the pressure. The interrelations between these integrals are obtained from the universality of LVCP. We extend the work of March et al. and suggest another structural integral I 3. We also provide analytical expressions for In (n = 0, 1, 2, 3) for hard-core Yukawa fluids based on the series mean spherical approximation. The location of LVCP parameters versus the intermolecular potential range parameter is accurately calculated for three different equations of states. We find good agreement when compared with computer simulation results only for the compressibility equation of state within the mean density approximation. The universality of the critical compressibility ratio at the LVCP is discussed in detail.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
