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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Tittel Intermolecular Forces and Molecules - Interactive Lecture Demonstration
Beskrivelse 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.
Emne Kjemi
Nivå Student - introduksjon (bachelor)
Type Demonstrasjon
Varighet 60 minutter
Svar inkludert Nei
Språk English
Nøkkelord Electrostatic potential, VSEPR, dipoles, electronegativity, intermolecular forces, ion-pairing, molecule geometry, partial charges, phase changes, polar and non-polar molecules
Simuleringer Molekylpolaritet (HTML5), Molekylpolaritet, Molekylform (HTML5), Molecule Shapes, Aggregattilstander (HTML5), Aggregattilstander, States of Matter: Basics (HTML5), States of Matter: Basics, Sugar and Salt Solutions


Forfattere Ted Clark, Julia Chamberlain
E-post for kontakt phethelp@colorado.edu
Skole / Organisasjon PhET
Lastet opp 05.11.14
Oppdatert 26.07.17