Fernández Tejero, CarlosBaus, M.2023-06-202023-06-202003-01-081 C. N. Likos, Phys. Rep. 348, 267 (2001). 2 A. König and N. W. Ashcroft, Phys. Rev. E 63, 041203 (2001). 3 M. Dijkstra, R. van Roij and R. Evans, Phys. Rev. E 59, 5744 (1999). 4 A. A. Louis, J. Phys.: Condens. Matter 14, 9187 (2002). 5 R. Evans, Adv. Phys. 28, 143 (1979). 6 J. P. Hansen and I. R. McDonald, Theory of Simple Liquids, 2nd ed. (Academic, London, 1986). 7 D. A. McQuarrie, Statistical Mechanics (Harper & Row, New York, 1976). 8 N. G. Almarza, E. Lomba, G. Ruiz, and C. F. Tejero, Phys. Rev. Lett. 86, 2038 (2001). 9 C. F. Tejero and M. Baus, Phys. Rev. E 57, 4821 (1998). 10 M. Dijkstra and R. van Roij, J. Phys.: Condens. Matter 10, 1219 (1998). 11 F. Stillinger, H. Sakai, and S. Torquato, J. Chem. Phys. 117, 288 (2002)0021-960610.1063/1.1526837https://hdl.handle.net/20.500.14352/50902© 2003 American Institute of Physics. C.F.T. acknowledges financial support from the Ministerio de Ciencia y Tecnología (Spain) Ref: BFM2001-1017-C03-03 and M.B. from the F. N. R. S. (Belgium). The authors thank A. A. Louis for communicating to them Ref. 4 prior to publication.The compressibility equation of a fluid with an effective, state-dependent, pair-potential is derived. It is shown that the thermodynamic states for which the infinite wavelength limit of the static structure factor diverges are not consistent with the thermodynamic states for which the compressibility diverges whenever the effective potential is density-dependent. This result is in agreement with some recent numerical simulations.engjournal articlehttp://dx.doi.org/10.1063/1.1526837http://scitation.aip.org/open access536LiquidTermodinámica2213 Termodinámica