Title: The Yang-Yang anomaly in liquid-liquid criticality: Experimental evidence from adiabatic scanning calorimetry
Authors: Losada-Perez, Patricia ×
Tripathi, Chandra Shekhar
Leys, Jan
Cerdeirina, Claudio A
Glorieux, Christ
Thoen, Jan #
Issue Date: Jan-2012
Publisher: Elsevier
Series Title: Chemical Physics Letters vol:523 pages:69-73
Abstract: Using adiabatic scanning calorimetry, we have found the first experimental evidence of the Yang-Yang anomaly in liquid-liquid criticality from high-resolution two-phase isobaric heat capacity measurements for the binary mixture 3-pentanol + nitromethane. The results suggest a rather strong effect. The critical amplitude of the partial molar heat capacity is higher for the component with larger molecular volume, in accordance with the predictions of complete scaling as obtained from the customary observed asymmetric behavior of the coexistence-curve diameter. This consolidates complete scaling as the true formulation of fluid-fluid criticality. The quantitative analysis indicates that molecular size is not the only microscopic factor at play in asymmetric liquid-liquid criticality. (C) 2011 Published by Elsevier B.V.
ISSN: 0009-2614
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Soft Matter and Biophysics
× corresponding author
# (joint) last author

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