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Lecture 4 (10am) Chapter 4 and Chapter 17 (Equilibrium) September 11 2009

# Lecture 4 (10am) Chapter 4 and Chapter 17 (Equilibrium) September 11 2009

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My Saturday Office Hours this week (Saturday September 12 th ) will not be in DCC 330 There is an Open House Event this weekend and the room is not available. I will be in the Walker building giving two tours (one at 10am and one at 11am) so you can come to the third floor of Walker and I will be happy to answer your questions in between my tours. (I will open a third floor Walker classroom (3222 or 3221) for us to use.)

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Introduction to Equilibrium Chapter 4.7, Chapter 17.1-17.5 Lecture 4 September 11, 2009

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Introduction to Equilibrium

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What is the equilibrium constant expression for the gas phase decomposition of SO 3 to SO 2 and O 2 ? A. ] [ ] [ ] [ 2 2 2 2 3 O SO SO K = B. ] [ ] ][ [ 3 2 2 SO O SO K = C. 2 3 2 2 2 ] [ ] [ ] [ SO O SO K = D. ] [ ] [ ] [ 3 2 2 2 SO O SO K =
The equilibrium constant is a number that is constant for a given reaction at a given temperature

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Where does the equilibrium constant come from?

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We can track the progress of a reaction as it proceeds toward equilibrium by calculating “Q” the reaction quotient .
Three Cases: 1.Q = K 2.Q < K 3.Q > K

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Example: CO 2 (g) + H 2
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