This chemistry video tutorial provides a basic introduction into London dispersion forces also known Van Der Waals forces. London dispersion forces arise from the electrostatic interactions between temporary dipoles and induced dipoles. A dipole is a polarized particle that contains a separation of charge - one part of the particle is partially positive, and the other part is partially positive. Polar molecules contain permanent dipoles. Nonpolar molecules do not usually contain a dipole moment but can become a temporary dipole due to the distortion of the electron cloud. Atoms and molecules with a large number of electrons are highly polarizable, that is, they have a higher probability of turning into a temporary dipole. A dipole can cause another molecule to turn into a temporary dipole. This is known as an induced dipole. The interactions between temporary instantaneous dipoles and induced dipoles are known as van der waals interactions or london dispersion forces. Large molecules have a high amount of london dispersion forces and therefore have higher boiling points than smaller molecules. Boiling point is directly related to the amount of van der waal interactions among molecules.
Chemistry 1 Final Exam Review:
https://www.youtube.com/watch?v=5yw1YH7YA7c
Chapter 10 - Video Lessons:
https://www.video-tutor.net/liquids-and-solids.html
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Lewis Structures - Mega Review:
https://www.youtube.com/watch?v=PeY_sihSh8E
Sigma and Pi Bonding:
https://www.youtube.com/watch?v=pT8nrBrTOm4
Hybridization of Atomic Orbitals:
https://www.youtube.com/watch?v=pdJeQUd2g_4
Molecular Orbital Theory:
https://www.youtube.com/watch?v=6tB6E6R_XpQ
Dipole Dipole Forces of Attraction:
https://www.youtube.com/watch?v=zOvnu0KYyxo
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Hydrogen Bonding:
https://www.youtube.com/watch?v=ZDjJOqOKeCI
London Dispersion Forces:
https://www.youtube.com/watch?v=yIuJfHOVh48
Ion Dipole Forces:
https://www.youtube.com/watch?v=DwNmEc9x1U4
Bragg's Equation For X-Ray Diffraction:
https://www.youtube.com/watch?v=Cjce4QumZNk
Molecular & Network Covalent Solids:
https://www.youtube.com/watch?v=O82d8aiIS5Y
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Metallic Bonding:
https://www.youtube.com/watch?v=ileXLAvDXIU
Metal Alloys:
https://www.youtube.com/watch?v=waLo6Yqtsug
Diamond Vs Graphite:
https://www.youtube.com/watch?v=Anu2evOTnBU
Semiconductors:
https://www.youtube.com/watch?v=ethnHSgVbHs
Unit Cell Chemistry:
https://www.youtube.com/watch?v=HCWwRh5CXYU
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