#17 - hem 165 Class 17 uggested End-of-chapter problems for...

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Unformatted text preview: hem 165 Class 17 uggested End-of-chapter problems for Chapter 14 from todays material Chapter 14: 6, 7, 9, 14, 15, 18, 20, 21, 25 bjective today: 1. Introduce the concepts associated with dynamic chemical equilibria. 2. Consider heterogeneous equilibria and the magnitudes of equilibrium constants. Text: Chapter 14: Section 1 3; Next class: Chapter 14: Section 3 4 ARIS: Chapter 23-B: assignment due Friday (3/13) at 6:00 pm CDT (yesI realize this last one is due at the start of Spring Break; you can certainly complete it earlier if you prefer) Caption : The dynamic equilibrium between gaseous NO 2 (a brown gas) and N 2 O 4 (a nearly colorless gas) is revealed in the temperature dependence of a mixture of the two gases. At low temperatures, nearly all NO 2 molecules bond together to form colorless N 2 O 4 (left). At greater temperatures, the equilibrium lies further towards the NO 2 side of the reaction, as is observable via the brown color of the mixture. hapter 14: Chemical Equilibrium: The how far of chemical reactions hem 165 Class 17 Rate of forward (elementary) reaction: Rate of reverse (elementary) reaction: ] O N [ rate 4 2 for for k = 2 2 rev rev ] NO [ rate k = How far does a reaction proceed? N 2 O 4 ( g ) 2 NO 2 ( g ) k rev k for hapter 14: Chemical Equilibrium: A. Equilibrium Constants and Rate Constants (Sec. 14.3) hem 165 Class 17 At (dynamic) Equilibrium:...
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This note was uploaded on 10/21/2010 for the course CHEM 155 taught by Professor Burnett,joe during the Fall '08 term at Iowa State.

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#17 - hem 165 Class 17 uggested End-of-chapter problems for...

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