范氏气体状态方程与焦耳——汤姆逊效应的转换温度

Vander Walls Equation and Transformation Temperature of Joule-Thomson Effect

本文分析了传统的热学理论中理想气体状态方程和范德瓦尔斯方程所对应的焦—汤效应的转换温度,提出并建立了一个更符合实际气体特点的状态方程。并针对这个实际气体方程,依据焦—汤效应的等焓性质推导出该方程对应的焦—汤效应的转换温度,得到的理论值与实验值相差较小,说明此方程更加接近实际气体的性质,是一个更加优化的实际气体状态方程。

This paper analyzes the traditional theory of heat in the state equation of ideal gas and the corresponding equation molecular model of Vander Wails, thus proposes a more actual state equation, which is more accurate to the characteristics of the gas in the actual gas model. Based on the model and with the Joule-Thomson and enthaipy conclusion, the present study de- duces the Joule-Thomson effect temperature conversation of the gas model and finds the theoretical value is smaller than the experimental value, which indicates that model is closer to the real nature of actual gas, and is a more optimized practical model.