计算物质汽化热的通用公式

Calculation of Vaporization-heat of Pure Substances by Using Thermal Pressure

基于热力学热压理论，推导出了纯物质的汽化热方程，用此方程计算３２种物质，其中包括某些强极性化合物的汽化热数据．计算数据和实验数据间的一致性十分令人满意表明此新汽化热方程非常适合于描述气液相变化的特性．

Based on the thermodynamic theory of thermal pressure, the equations for vaporization-heat of pure substances were derived, and then used to calculate the vaporization-heat data for thirty-two substances including some strongly polar compounds, such as, methand, ethanol and acetic acid etc. The agreement between calculated and experimental data was quite satisfactory. It shows that the new equations of vaporization heat herein are well suited to describe, the property of vapor-liquid phase change.