摘要
从内能的修正出发,推导了弱简并非理想费米气体的状态方程,并以此为基础,利用相关的热力学关系,推导了系统的热容量和熵等热力学参量,分析了分子有效直径对这些热力学参量的影响机制.结果发现:分子有效直径在一定值上会使内能和熵发生突变,而在该值两边,内能和熵的变化规律都不相同,分子有效直径对热容量几乎没有影响.
According to the revision of internal energy, the state equation of weak degenerate imperfect gas has been deduced. And take this as the foundation, by making use of the related thermodynamics relations, heat capacity and enthalpy have been derived, the influence of effective molecular diameter on this thermodynamic parameter is analyzed. The results show that in certain value the molecular effective diameter can cause sudden change of the internal energy and entropy, but beyond the certain value the ways they change are different, and effective molecular diameter almost has no effects on the heat capacity.
出处
《重庆文理学院学报（自然科学版）》
2008年第6期50-53,共4页
Journal of Chongqing University of Arts and Sciences
基金
长江师范学院科研项目(cjsfxy-023)
关键词
弱简并
非理想费米气体
分子有效直径
热力学参量
weak degenerate
imperfect Fermi gas
effective molecular diameter
thermodynamic parameter
