Koyuncu, Mustafa2020-03-262020-03-2620110026-8976https://dx.doi.org/10.1080/00268976.2010.538738https://hdl.handle.net/20.500.12395/26454We have devoloped a completely analytical equation of state for the long-range triangular-well (LR-TW) fluid of variable well width ([image omitted]) as a function of temperature and density based on the augmented van der Waals theory. Hard spheres with a short-range Yukawa attraction are used as the reference fluid. We present the vapour-liquid coexistence curve and thermodynamic properties such as pressure and internal energy. Comparison with computer simulation data and the first- and second-order Barker-Henderson perturbation theory results are discussed.en10.1080/00268976.2010.538738info:eu-repo/semantics/closedAccesstriangular-well fluidperturbation theoryequation of statethermodynamic propertiesvapour-liquid equilibriaArticle1094565573Q3WOS:000287400900009Q3