9-18-08[lecture6]mo

9-18-08[lecture6]mo - Chem 116 Notes 9/18/08 A clicker...

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Chem 116 Notes 9/18/08 A clicker question about material we covered in class last lecture Which statement about the vapor pressure of water is correct? A. If atmospheric pressure is 600mmHg, water will boil at about 93 o C B. Water cannot boil above 100 o C (water can boil above 100 o C) C. At 100 o C, the vapor pressure of water is about 50mmHg (these numbers are inverted on the graph) D. This bears no relevance to my life (ha ha ) Dew Point *Dew point - temperature that air condenses and produces dew *Relative humidity - Water vapor in the air (how sticky the air feels) Relative humidity = partial pressure of water in the air maximum amount of pressure that could be in the air *Water vapor in the air = partial pressure of water *Relative humidity of 80-90% = “uncomfortable air” *Relative humidity of 10-20% = “comfortable air” *The curve on this slide shows the maximum partial pressure of water at a given Temperature (aka saturation vapor pressure) Heating curve vs. phase diagram vs. vapor pressure curve 1. Heating curve – Part of phase diagram that shows the results of the phase by
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This note was uploaded on 12/02/2011 for the course PHYSICS 235 taught by Professor Staff during the Fall '08 term at Rutgers.

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9-18-08[lecture6]mo - Chem 116 Notes 9/18/08 A clicker...

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