磁性物质的热力学系统和对气候的影响  

Magnetic system for thermodynamics and climatic influence

作　　者：朱正和[1] 

机构地区：[1]四川大学原子与分子物理所,成都610065

出　　处：《原子与分子物理学报》2012年第6期1110-1112,共3页Journal of Atomic and Molecular Physics

摘　　要：本文首先对单组分或组成不变的多组分系统给出磁场下的热力学系统的基本方程,导出熵为温度和磁场强度的函数S(T,H)的微分方程TdS=C_H_HT+μVT((aM)/(aT))_H dH并进一步证明顺磁性物质等温可逆放热,即Q<0,会导致系统磁场增高.根据宏观热力学理论这一结论,则磁铁矿的存在会导致地区气候温和宜人.The present work gives the thermodynamic equations for magnetic system under magnetic field and derives the differential equation of function S （T, H） as TdS=CHdT＋μVT（ M/ T）HdH which it is proved that if the system is exothermic, i. e. Q 〈 0, then its magnetic field will be increased. Then, the paramagnetic salt will promote the climate warmly.

关 键 词：顺磁质的放热 磁场增强 地区气温 

分 类 号：O441.2[理学—电磁学]