9-11-08[lecture4]jr

9-11-08[lecture4]jr - CHEM 116 Lecture 4: Phase Changes and...

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CHEM 116 Lecture 4: Phase Changes and Phase Diagrams 9-11-08 (jr) Gas Mixtures o Gases in a mixture spread out until all available space is taken up. o Each gas in a mixture behaves independently of the other. o Each gas exerts its own pressure, called the partial pressure. o The sum of all of the partial pressures in a mixture equals the total pressure. Gases spread out evenly, meaning the density of a gas in one part of a container is the same as in another part of the container. Mole Fractions o The mole fraction is the number of moles of a specific gas over the total moles of all gases in the mixture. o The mole fraction of a gas multiplied by the total pressure is equal to the partial pressure of that gas (ie., the mole fraction is directly proportional to the partial pressure). o Additionally, the mole fractions of two different gases should add up to 1. o And the partial pressures of all the gases should add up to the total pressure. Water Bath Diagram
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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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9-11-08[lecture4]jr - CHEM 116 Lecture 4: Phase Changes and...

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