Intermolecular Forces and Molecules - Interactive Lecture Demonstration 一颗金星 象征着 是通过PhET设计指南所设计出来的高质量的探究活动。

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标题 Intermolecular Forces and Molecules - Interactive Lecture Demonstration
描述 This Interactive Lecture Demonstration Guide has the following goals. Students will be able to: • Use VSEPR theory to construct common molecules; • Sketch electron density and identify partial charges based on molecule geometry and electronegativity; • Distinguish between bond and molecule dipoles; • Classify molecules as polar or non-polar; • Compare and contrast permanent and induced dipoles; • Identify hydrogen-bonding, and discuss its origin in terms of molecule geometry and electronegativity; • Explain properties, such as boiling or melting point, by considering different intermolecular forces; • Relate the relative strength of intermolecular forces with melting point or boiling point data, and with particle-level representations of substances at different temperatures; • Describe the dynamic particle motion in a liquid, including the arrangement and motion of molecules accompanying hydrogen-bonding and ion-dipole interactions; • Explain ion-pairing at the particle-level, and describe how this affects colligative properties.
科目 化学
等级 本科生 - 低年级
类型 示范
持续时间 60 分钟
语言 英语
关键词 Electrostatic potential, VSEPR, dipoles, electronegativity, intermolecular forces, ion-pairing, molecule geometry, partial charges, phase changes, polar and non-polar molecules
仿真程序 分子极性 (HTML5), 分子极性, 分子形状 (HTML5), 分子形状, 物质状态 (HTML5), 物质状态, 物质状态:基础 (HTML5), 物质的基本形态, 糖和盐溶液

作者 Ted Clark, Julia Chamberlain
学校/组织 PhET
提交日期 14-11-5
更新日期 17-7-26