高中物理总复习试题精编（热学、光学、原子物理部分）西北工业大学附中史耀如热学一、单项选择题１．水的分子量为１８，密度为１．０×１０３千克／米３．取阿伏加德罗常数为６．０×１０２３摩－１．把水分子当成球形．根据以上数据估算，水分子的直径最接近Ａ．２．０... High school physics review review compilation (heat, optics, atomic physics) Northwestern Polytechnical University attached to the history of Yao Yao, such as thermal one, single-choice questions 1. Water has a molecular weight of 18 and a density of 1.0 x 103 kg/m3. Take the Avogadro constant of 6.0×1023 m −1 . Think of water molecules as spheres. Based on the above data, the diameter of the water molecule is closest to A. 2.0...