Internal pressure of a thermodynamically ideal mixture and the excess internal pressure

Literature Information

Publication Date 2002-04-15
DOI 10.1039/B110887E
Impact Factor 3.676
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Abstract

The excess internal pressure is often discussed in terms of molecular interactions in liquid mixtures. The additivity of internal pressures in the mole fraction scale is often erroneously assumed for an ideal mixture. In this paper, a thermodynamically correct formula for the excess internal pressure is suggested and compared with that based on the mole fraction additivity.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
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Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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