The Dissociation Pressure of a Solid Under Inert Gas Pressure

Autor:	Alfred J. Perkins
Rok vydání:	1937
Předmět:	Virial coefficient Chemistry General Physics and Astronomy Thermodynamics Raoult's law Astrophysics::Earth and Planetary Astrophysics Partial pressure Physical and Theoretical Chemistry Total pressure Inert gas Mole fraction Mass fraction Dissociation (chemistry)
Zdroj:	The Journal of Chemical Physics. 5:180-185
ISSN:	1089-7690 0021-9606
DOI:	10.1063/1.1750004
Popis:	The mole fraction of ammonia in equilibrium with barium chloride octammine at 32°C and at various pressures of helium, argon and nitrogen has been determined. At every pressure, the mole fraction is greater than that expected by a simple application of the Poynting relation. An equation has been derived for the chemical potential of a component of a gaseous mixture in terms of the total pressure, the mole fraction, and the second virial coefficients. This equation has been tested and shown to give fair agreement between calculated and observed values. One advantage is the fact that it can be used to calculate the mole fraction of the component of a gas mixture which arises from the dissociation of a solid with which the mixture is in equilibrium. It is also shown how these measurements might be used to calculate the second virial coefficients of gaseous mixtures.
Databáze:	OpenAIRE
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