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The Antoine equation〔 〕 is a vapor pressure equation and describes the relation between vapor pressure and temperature for pure components. The Antoine equation is derived from the Clausius–Clapeyron relation. ==The equation== : where ''p'' is the vapor pressure, is temperature and , and are component-specific constants. The simplified form with set to zero: : is named the August equation, after the German physicist Ernst Ferdinand August (1795–1870). The August equation describes a linear relation between the logarithm of the pressure and the reciprocal temperature. This assumes a temperature-independent heat of vaporization. The Antoine equation allows an improved, but still inexact description of the change of the heat of vaporization with the temperature. The Antoine equation can also be transformed in a temperature-explicit form with simple algebraic manipulations: : 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Antoine equation」の詳細全文を読む スポンサード リンク
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