The latent heat of confined fluids calculated from the Clausius-Clapeyron equation


  • Erendira Aguilar-Huerta Universidad Nacional Autonoma de Mexico
  • Ana Beatriz Salazar-Arriaga Universidad Nacional Autonoma de Mexico
  • Héctor Dominguez Instituto de Investigaciones en Materiales, UNAM



Confined fluids, Monte Carlo, Phase transition, latent heat, coexistence lines, fluid structure


Monte Carlo simulations of simple Lennard Jones fluids confined in different geometries, sphere, cylinder and slit-like pores are conducted to study the vapour-liquid transition. Phase diagrams, in the temperature-density (T-ρ) and pressure-temperature (P-T) are obtained. For each geometry the coexistence lines are plotted from the clapeyron equation of each systems and a P −T equation is proposed in terms of the critical temperature which works for all the systems. Additionally, the transition latent heat is also evaluated, from the enthalpy calculation obtained directly from the simulation data, and the fluid structure from density profiles.


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How to Cite

E. Aguilar-Huerta, A. B. Salazar-Arriaga, and H. Dominguez, “The latent heat of confined fluids calculated from the Clausius-Clapeyron equation”, Rev. Mex. Fís., vol. 70, no. 3 May-Jun, pp. 031701 1–, May 2024.



17 Thermodynamics and Statistical Physics