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The concept of vapor pressure, its relationship with temperature and intermolecular forces, and how it impacts boiling points. It covers volatile and non-volatile liquids, the role of atmospheric pressure, and provides examples and exercises.
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H 2 O (l) H 2 O (g) Vapor Pressure
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Substances with strong intermolecular forces of attraction between particles will have a low vapor pressure due to low evaporation and a high boiling point because a lot of energy is needed to go from a liquid to a gas due to the strong attractions. Nov 72:39 PM Vapor Pressure & Boiling
Two ways to get a liquid to boil: 1)Increase the temperature in order to increase the vapor pressure. 2)Decrease the atmospheric pressure until it equals the vapor pressure.
Atmospheric Pressure Vapor Pressure
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http://www.youtube.com/watch?v=VjgfelzQ_aE