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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Наслов Intermolecular Forces and Molecules - Interactive Lecture Demonstration
Опис 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.
Субјект Хемија
Ниво Основне студије - Увод
Тип Демонстрација
Трајање 60 минута
Укључен одговор Не
Језик Енглески
Кључне речи Electrostatic potential, VSEPR, dipoles, electronegativity, intermolecular forces, ion-pairing, molecule geometry, partial charges, phase changes, polar and non-polar molecules
Симулације Поларност молекула (HTML5), Поларност молекула, Облици молекула (HTML5), Облици молекула, Стања материје (HTML5), Агрегатна стања, Стања материје: основе (HTML5), Агрегатна стања : основни ниво, Раствори шећера и соли


Аутори: Ted Clark, Julia Chamberlain
Контакт имејл: phethelp@colorado.edu
Школа / Организација PhET
Послато 5.11.14.
Обновљено 26.7.17.