| 单词 | dipole-dipole interaction |
| 释义 | dipole-dipole interaction The interaction of two systems, such as atoms or molecules, by their dipole moments. The energy of dipole-dipole interaction depends on the relative orientation and the strength of the dipoles and how far apart they are. A water molecule has a permanent dipole moment, thus causing a dipole-dipole interaction if two water molecules are near each other. Although isolated atoms do not have permanent dipole moments, a dipole moment can be induced by the presence of another atom near it, thus leading to induced dipole -dipole interactions . Dipole-dipole interactions are responsible for van der Waals' forces and surface tension in liquids |
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