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热力学,全称热动力学(法语:thermodynamique,德语:Thermodynamik,英语:thermodynamics,源于古希腊语θερμός及δύναμις)是研究热现象中物态转变搭能量转换规律个学科;渠着重研究物质个平衡状态搭子搭准平衡态个物理、化学过程。热力学定义交关多宏观个物理量(像温度、内能、熵、压强等),描述各物理量之间个关系。热力学描述数量邪气多个微观粒子个平均行为,渠个定律可以用统计力学推导而得。
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