9-28-11 - Chemistry 1A F11 9.28.11 Dr. Shaka Course Code...

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Unformatted text preview: Chemistry 1A F11 9.28.11 Dr. Shaka Course Code 40000 General Chemistry 1A Fall Quarter 2011 A. J. Shaka Chemistry Department University of California, Irvine Ten Week Course 27 Chemistry 1A F11 9.28.11 Dr. Shaka Course Code 40000 The Van der Waals Eqn. We take into account the attraction by reducing the pressure. We increased the effective volume by subtracting off nb ; we decrease effective pressure by adding an attractive term to p . The term should depend on two atoms being close, and since closeness depends on number per volume, our term is a n V " # $ % & n V " # $ % & = an 2 V 2 27 Chemistry 1A F11 9.28.11 Dr. Shaka Course Code 40000 The Van der Waals Eqn. We take into account the attraction by reducing the pressure. We increased the effective volume by subtracting off nb ; we decrease effective pressure by adding an attractive term to p . The term should depend on two atoms being close, and since closeness depends on number per volume, our term is a n V " # $ % & n V " # $ % & = an 2 V 2 28 Chemistry 1A F11 9.28.11 Dr. Shaka Course Code 40000 The Van der Waals Eqn....
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9-28-11 - Chemistry 1A F11 9.28.11 Dr. Shaka Course Code...

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