Physical Chemistry Chapter VI Interaction between Molecules,2 (1 Electrostatic interaction Keesom 1912 Dipole-dipole interactions between two polar molecules 2+2(40)2k7R] 2021821 Chemistry Departme nt of Fudan UniversityPhysical ChemistryI Chapter VI Interaction between Molecules 2021/8/21 Chemistry Department of Fudan University 3 (1) Electrostatic interaction Keesom 1912 Dipole-dipole interactions between two polar molecules 2 2 2 6 e 1 2 0 2 [ /(4 ) ] 3 E kTR = −   