Intermolecular Forces and Molecules - Interactive Lecture Demonstration A gold star indicates high-quality, inquiry-based activities that follow the PhET design guidelines.


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主題 Intermolecular Forces and Molecules - Interactive Lecture Demonstration
說明 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 化學
程度 大學 - 簡介
類型 展示
時間 60 分鐘
解答
語言 英語
關鍵字 Electrostatic potential, VSEPR, dipoles, electronegativity, intermolecular forces, ion-pairing, molecule geometry, partial charges, phase changes, polar and non-polar molecules
模擬教學 Molecule Polarity_分子的極性 (HTML5), Molecule Polarity 分子極性, Molecule Shapes_分子形狀 (HTML5), Molecule Shapes 分子形狀, States of Matter_物質三態 (HTML5), States of Matter 物質的狀態, States of Matter: Basics_物質三態:基礎 (HTML5), States of Matter: Basics 物質的狀態:基礎的, Sugar and Salt Solutions 糖與鹽水溶液


作者 Ted Clark, Julia Chamberlain
聯繫 Email phethelp@colorado.edu
學校 / 機構 PhET
提交日期 2014/11/5
更新日期 2017/7/26