固气相变蒸发热的计算

Compution of the heat of vaporization for the Einstein and Debye solid

用固体的Einstein模型与Debye模型分别导出了相应模型的固气相变的蒸发热和蒸发压公式,并对其做了数值计算.结果表明,蒸发热与温度之间近似呈线性关系,这与工程上经验近似是一致的.

The formulas of heat of vaporization and vapor pressure are derived, for the Einstein and Debye solid model. In the result,the heat of vaporization changes linearly with temperature.The result is as well as the assumption in engineering.