Van der Waals forces are the sum of the attractive and repulsive electrical forces between atoms and molecules. These forces differ from covalent and ionic chemical bonding because they result from fluctuations in charge density of particles. Examples of van der Waals forces includehydrogen bonding,di...
van der Waals forces include three different types of atomic or molecular interactions. Two of them, the so-called orientation orKeesom interactionand the Debye interaction, are based on electrostatic mechanisms. The Keesom interaction arises from apermanent dipolein another permanent dipole. The Deby...
van′ der Waals'` forc`es (ˈvæn dər ˌwɑlz, ˌwɑls) n.pl. weakly attractive forces that act between neutral atoms or molecules. [1925–30; after J. Dutch. van der Waals (1837–1923), Dutch physicist] Random House Kernerman Webster's College Dictionary, © 2010...
沪江词库精选van der Waals forces是什么意思、英语单词推荐 【化】 范德瓦耳斯力 相似短语 van der Waals forces 【化】 范德瓦耳斯力 van der Waals radius 【化】 范德瓦耳斯半径; 范德华半径 Van der Waals attraction 范德瓦耳斯引力 Van Der Waals attraction 【机】 范得瓦力 johannes van der ...
范德华力 (Van der Waals force) 范德瓦耳斯力(Van der Waals force),又称范氏引力或范德华力或凡得瓦力。在化学中,通常指分子之间的作用力。根据荷兰物理学家约翰尼斯·迪德里克·范·德·瓦尔斯命名。范德瓦耳斯力是一种电性引力,它比化学键弱得多。其中分子的大小和范德瓦耳斯力的大小成正比。 一个原子周...
凡得瓦力(Van der Waals Forces):结合力最弱。 一、剂量与血中浓度的关系最小有效浓度所需时间称为起效(onset);药物浓 … www.docin.com|基于53个网页 2. 范德华力 8 不知道范德华力(van der Waals forces)是分子和分子之间的吸引力,错误写出 ‘S9 不知道电负性(electronegative)一词,是用 … ...
The meaning of VAN DER WAALS FORCES is the relatively weak attractive forces that act on neutral atoms and molecules and that arise because of the electric polarization induced in each of the particles by the presence of other particles.
When reading the literature, it is important to bear in mind which forces are being referred to by the term van der Waals forces. Some authors include all three of the types of dipole interactions mentioned here as van der Waals forces, whilst other authors specifically only mean the ...
Van der Waals forces(范德瓦尔斯力)VAN DER WAALS FORCES INTERMOLECULAR BONDING What are intermolecular attractions?Intermolecular versus intramolecular bonds Intermolecular attractions are attractions between one molecule and a neighbouring molecule. The forces of attraction which hold an individual molecule ...
van der Waals forces 英 美 [væn dɜr wɑlz ˈfɔːrsɪz]网络 范德华力; 凡得瓦力; 范德华引力; 范德瓦尔斯力; 范德瓦耳斯力