Le diagramme de Frost permet de prévoir rapidement la stabilité des différentes formes redox d'un élément chimique (par exemple si l'élément chimique considéré est l'oxygène : O 2, H 2 O 2 et H 2 O) à un pH donné.

A Frost diagram or Frost–Ebsworth diagram is a type of graph used by inorganic chemists in electrochemistry to illustrate the relative stability of a number of different oxidation states of a particular substance.

2021年8月23日 · A Frost diagram may be used to determine when two species are thermodynamically favored to undergo comproportionation. Draw a line between the two species on the diagram. If there are states below the line then the two species are unstable towards forming those states by comproportionation.

弗罗斯特图方便地说明了元素不同氧化态的水溶液还原电位和热力学趋势。本科教科书通常将 Frost 图上的最低点描述为元素最稳定的氧化态，但这种解释是误导性的，因为每个氧化态的热力学稳定性取决于溶液中特定的氧化还原条件（即环境或电极）。

A Frost diagram: Contains the same information as in a Latimer diagram, but graphically shows stability and oxidizing power. The lowest species on the diagram are the most stable (Mn 2 +, MnO 2) The highest species on diagram are the strongest oxidizers (MnO 4-)

2022年12月1日 · A Frost diagram or Frost–Ebsworth diagram is a type of graph used by inorganic chemists in electrochemistry to illustrate the relative stability of a number of different oxidation states of a particular substance. The graph illustrates the free energy vs oxidation state of a chemical species.

2010年4月11日 · A Frost diagram is a graphical representation of the relative stability of different oxidation states of an element: specifically a plot of the Gibbs free energy of formation of different species, in or from aqueous solution, against oxidation number. Such diagrams were first introduced by American chemist Arthur A. Frost.

Tracer le diagramme de Frost de l'azote. En déduire les espèces stables et celles qui se dismutent; Calculer les potentiels standart à pH=0 des couples redox stables

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Le diagramme de Frost permet de comparer rapidement les propriétés chimiques des éléments chimiques dans leurs divers degrés d'oxydation à un pH donné. Soit un élément chimique A possédant les degrés d'oxydation i, j et k auxquels sont associés les potentiels redox standard Ei°(Ai, Ao) où Ai est l'élément A à son degré d ...