The data required in the method are: liquid density, Z_(RA)and vaporization enthalpy at normal boiling point.
本方法所需数据为：液体密度、Z_（RA）值及正常沸点下蒸发焓。
A method of predicting vapor pressures of hydrocarbons from the normal boiling points and the molecular formulas is proposed.
提出一个只由正常沸点和分子式估算烃类物质蒸气压的方法。
The normal boiling point of a liquid is the special case at which the vapor pressure of the liquid equals the ambient atmospheric pressure.
常压沸点是一个特例，其中，液体的蒸汽压与环境大气压相等。
It is found that the parameter is directly proportional to the molar volume of liquid at the normal boiling point, and its values have the additivity of groups.
这个参数的值与正常沸点下液体的摩尔体积成正比，且具有基团加和性。
A new equation for calculating heat of vaporization of pure compounds at normal boiling points is derived with the residual function method improved by the new RK EOS which was proposed in 1980s.
应用八十年代提出的新r - K状态方程序，改进纯物质常沸点汽化热的剩余函数预测法，推导出纯物质常沸点汽化热的新计算方程序。
A new equation for calculating heat of vaporization of pure compounds at normal boiling points is derived with the residual function method improved by the new RK EOS which was proposed in 1980s.
应用八十年代提出的新r - K状态方程序，改进纯物质常沸点汽化热的剩余函数预测法，推导出纯物质常沸点汽化热的新计算方程序。
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