10.1 Intermolecular Forces | High School Chemistry

Chad provides a comprehensive lesson on Intermolecular Forces including hydrogen bonding, dipole-dipole forces, London dispersion forces, and ion-dipole forces. He explains their relative strengths and how they affect the bulk properties of a liquid including boiling point, enthalpy of vaporization, viscosity, surface tension, and vapor pressure. Chad then moves on to discussing the plot of vapor pressure vs temperature for a liquid and how to use it to identify a liquid's boiling point. He then concludes the lesson by showing how intermolecular forces are responsible for adhesion, cohesion, and capillary action, concepts that all have biological relevance.

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00:00 Lesson Introduction
00:18 Introduction to Intermolecular Forces
02:48 Dipole-Dipole Forces
05:38 Hydrogen Bonding
11:11 London Dispersion Forces
14:11 Boiling Point, Viscosity, Surface Tension, and Vapor Pressure
29:42 Ion-Dipole Forces
31:35 Vapor Pressure Curve and Boiling Point
35:09 Adhesion, Cohesion, and Capillary Action

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