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1983•Journal of Physics C Solid State PhysicsRequires access

Incipient triple point for N2adsorbed on graphite

Aldo Migone, Moses H. W. Chan, K. J. Niskanen, Robert B. Griffiths

Open publisher page 33 citations

Abstract

The results of an extensive AC heat capacity study supported by a model calculation and further thermodynamic analysis indicate that the anomaly near 49K in the submonolayer region of nitrogen adsorbed on graphite is due to an incipient triple point, in which the low free energy of the solid suppresses the liquid phase, rather than a genuine triple point or a multicritical (i.e. tricritical) point.

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What this paper is about

The results of an extensive AC heat capacity study supported by a model calculation and further thermodynamic analysis indicate that the anomaly near 49K in the submonolayer region of nitrogen adsorbed on graphite is due to an incipient triple point, in which the low free energy of the solid suppresses the liquid phase, rather than a genuine triple point or a multicritical (i.e. tricritical) point.

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Available abstract

The results of an extensive AC heat capacity study supported by a model calculation and further thermodynamic analysis indicate that the anomaly near 49K in the submonolayer region of nitrogen adsorbed on graphite is due to an incipient triple point, in which the low free energy of the solid suppresses the liquid phase, rather than a genuine triple point or a multicritical (i.e. tricritical) point.

Key concepts: Triple point, Tricritical point, Graphite, Multicritical point, Thermodynamics, Phase diagram, Adsorption, Condensed matter physics

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