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。
A method of predicting vapor pressures of hydrocarbons from the normal boiling points and the molecular formulas is proposed.
本方法所需数据为：液体密度、Z_（RA）值及正常沸点下蒸发焓。
The data required in the method are: liquid density, Z_(RA)and vaporization enthalpy at normal boiling point.
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。
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.
利用该软件还对104种有机物在正常沸点下的蒸发焓进行了估算，并与实验数据进行了比较，总平均误差为0.864%。
Enthalpy vaporization of 104 organic compounds were estimated and compared with experimental data by the simulating estimation software and the total average error is just 0.864%.
利用该软件还对104种有机物在正常沸点下的蒸发焓进行了估算，并与实验数据进行了比较，总平均误差为0.864%。
Enthalpy vaporization of 104 organic compounds were estimated and compared with experimental data by the simulating estimation software and the total average error is just 0.864%.
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