local dipole-moment什么意思啊?

local dipole-moment什么意思啊? temporary dipole moment和permanent dipole moment是什么意思,他们的区别有哪些?最好有英文的文献 请问那个dipole moment里面的那个δ+δ-是怎么来的啊? 一道AP化学关于Dipole moment的问题书上说,形成极性键的时候,两边的电荷越大,dipole moment就越大；同时,如果电荷相聚越远dipole moment 也就越大.后半句话为什么是对的? 化学问题三道(AP)(008)1、Define dipole moment.2、Can a molecule have a dipole moment if it has no polar covalant bonds?3、Can a molecule have polar bonds but no dipole moment?Justify your answer with an example. 英语翻译Because of electric charge transfer between the H and the O species,the molecule exhibits a strong electric dipole moment so that dipole-dipole interactions are expected to be important here and a fixed dipole alignments is to be expected SAT2化学的一道判断题,有关dipole moment的CCl4 is a nonpolar compound BECAUSE the dipole moments are canceled out.上面这句话是正确的,但谁能帮我解释一下为什么?还有,什么是dipole moments?还有还有,什么又是net di Local local 关于dipole moment和pi bond的化学题1.which of the following is expected to have the largest dipole moment?A.CH4 B.CO2 C.SF6 D.HCN E.CL-2.which of following molecules has more than one pi bond?a.CO2 B.SO2 C.NH3 D.C3H6 E.CH2O electrical dipole是什么意思 dipole transition是什么意思 英语翻译At the atomic level,infrared energy elicits vibrational modes in a molecule through a change in the dipole moment ,making it a useful frequency range for study of these energy states for molecules of the proper symmetry.Infrared spectrosc dipole-dipole force,dispersion forces请问,如何区分dipole-dipole force和dispersion force,和两者的主要特性 moment moment local for local 【抱歉：AP试卷的考题必须用英文解答】1、Explain why the dipole moment of CHCl3 is less than that of CH2Cl2.2、Define oxidation number.3、How can the oxidation number be used to determine the charge on the species