The Asymptotic Critical Amplitudes of the Thermodynamic Properties of Fluids

Abstract

This work reports on the critical amplitudes of the thermodynamic properties of fluids, such as the specific heat, the coexistence-curve diameter, the susceptibility, the chemical potential, and the correlation length. These amplitudes are first determined from the crossover model and then correlated as a function of the acentric factor. A comparison with their values from the literature is also made. Finally, this work completes the critical amplitudes data of few fluids not reported in previous publications (Perkins et al., Int J Thermophys 34:191–212, 2013.https://doi.org/10.1007/s10765-013-1409-z ).