其中: P指蒸汽压,单位为 mmHg, t指液体温度,单位为 ℃。计算水之蒸汽压时, A = 8.07131, B = 1730.63, C = 233.426
A、B、C是与物质相关的特性常数,使用该方程要注意温度适用范围。
英语百科
Antoine equation 安托万方程
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.