Potential theory of Polanyi (original) (raw)
The potential theory of Polanyi, also called Polanyi adsorption potential theory, is a model of adsorption proposed by Michael Polanyi where adsorption can be measured through the equilibrium between the chemical potential of a gas near the surface and the chemical potential of the gas from a large distance away. In this model, he assumed that the attraction largely due to Van Der Waals forces of the gas to the surface is determined by the position of the gas particle from the surface, and that the gas behaves as an ideal gas until condensation where the gas exceeds its equilibrium vapor pressure. While the adsorption theory of Henry is more applicable in low pressure and BET adsorption isotherm equation is more useful at from 0.05 to 0.35 P/Po, the Polanyi potential theory has much more a
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| dbo:abstract | The potential theory of Polanyi, also called Polanyi adsorption potential theory, is a model of adsorption proposed by Michael Polanyi where adsorption can be measured through the equilibrium between the chemical potential of a gas near the surface and the chemical potential of the gas from a large distance away. In this model, he assumed that the attraction largely due to Van Der Waals forces of the gas to the surface is determined by the position of the gas particle from the surface, and that the gas behaves as an ideal gas until condensation where the gas exceeds its equilibrium vapor pressure. While the adsorption theory of Henry is more applicable in low pressure and BET adsorption isotherm equation is more useful at from 0.05 to 0.35 P/Po, the Polanyi potential theory has much more application at higher P/Po (~0.1–0.8). (en) A Teoria do Potencial de Polanyi, também chamada de Teoria do Potencial de Adsorção de Polanyi, é um modelo de adsorção proposto por Michael Polanyi, onde a adsorção pode ser medida através do equilíbrio entre o potencial químico de um gás perto da superfície e o potencial químico do gás a partir de uma grande distância. Neste modelo, ele assumiu que a atração em grande parte devido à Van Der Waals forças do gás para a superfície é determinada pela posição das partículas de gás da superfície, e que o gás se comporta como um gás ideal , até a condensação, quando o gás excede o seu equilíbrio, a pressão de vapor. Enquanto a adsorção teoria de Henry é mais aplicável em baixa pressão e a BET da equação da adsorção isotermica é mais útil de 0,05–0.35 P/Po, a teoria de Polanyi tem mais aplicação em P/Po maior (~0.1–0.8). (pt) |
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| rdfs:comment | The potential theory of Polanyi, also called Polanyi adsorption potential theory, is a model of adsorption proposed by Michael Polanyi where adsorption can be measured through the equilibrium between the chemical potential of a gas near the surface and the chemical potential of the gas from a large distance away. In this model, he assumed that the attraction largely due to Van Der Waals forces of the gas to the surface is determined by the position of the gas particle from the surface, and that the gas behaves as an ideal gas until condensation where the gas exceeds its equilibrium vapor pressure. While the adsorption theory of Henry is more applicable in low pressure and BET adsorption isotherm equation is more useful at from 0.05 to 0.35 P/Po, the Polanyi potential theory has much more a (en) A Teoria do Potencial de Polanyi, também chamada de Teoria do Potencial de Adsorção de Polanyi, é um modelo de adsorção proposto por Michael Polanyi, onde a adsorção pode ser medida através do equilíbrio entre o potencial químico de um gás perto da superfície e o potencial químico do gás a partir de uma grande distância. Neste modelo, ele assumiu que a atração em grande parte devido à Van Der Waals forças do gás para a superfície é determinada pela posição das partículas de gás da superfície, e que o gás se comporta como um gás ideal , até a condensação, quando o gás excede o seu equilíbrio, a pressão de vapor. Enquanto a adsorção teoria de Henry é mais aplicável em baixa pressão e a BET da equação da adsorção isotermica é mais útil de 0,05–0.35 P/Po, a teoria de Polanyi tem mais aplicação (pt) |
| rdfs:label | Potential theory of Polanyi (en) Teoria do Potencial de Polanyi (pt) |
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