一、理想气体的微观模型 (The microscopic model of the ideal gas)力学假设 (Mechanical hypothesis) (1)气体分子当作质点,不占体积,体现气态的特性。 The gas molecules treats as the particle, it does not account for the volume, manifests the characteristic of the gaseous state
一、质点的角动量定理和角动量守恒定律 (The angular momentum theorem & The law of angular momentum conservation of a mass point) 1 质点的角动量(The angular momentum of a mass point) 质量为m的质点以速度v在空间运动,某时刻相对原点O 的位矢为r,质点相对于原点的角动量