Chem 1212k Practice Exam 4 - CHEM 1212K Practice Exam Four...

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CHEM 1212K Practice Exam Four Spring 2011 1. Which diagram best correlates to the mechanism if the reaction is endothermic? A + B C (slow) C + D E (fast) A) B) C) D) E)
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CHEM 1212K Practice Exam Four Spring 2011 2. The mechanism for the reaction of nitrogen dioxide with carbon monoxide to form nitric oxide and carbon dioxide is thought to be: NO 2 + NO 2 NO 3 + NO (slow) NO 3 + CO NO 2 + CO 2 (fast) What is the rate law expected for this mechanism? A) Rate = k[NO 3 ][CO] B) Rate = k[NO 2 ] 2 C) Rate = k[NO 2 ] 2 [CO] D) Rate = k[NO 3 ][NO] E) Rate = k[NO 2 ] 2 [CO][NO 3 ] 3. Arrange the following elements in order of increasing (more positive) electron affinity. Mg, Al, Si, P, S A) Mg < Al < Si < P < S B) S < P < Si < Al < Mg C) Mg < Al < P < Si < S D) Mg < Al < Si < P < S E) Al < Mg < P < Si < S 4. What is the activation energy for a reaction that resulting in the following graph? A) 8.9 x 10 4 J/mol B) 1.2 x 10 -5 J/mol C) 1.1 x 10 4 J/mol D) 9.1 x 10 -5 J/mol E) 2.7 x 10 4 J/mol
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CHEM 1212K Practice Exam Four Spring 2011 5. A catalyst facilitates a reaction by A) increasing the activation energy for the reverse reaction.
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This note was uploaded on 08/01/2011 for the course CHEMISTRY 1212 taught by Professor Soper during the Spring '10 term at Georgia Institute of Technology.

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Chem 1212k Practice Exam 4 - CHEM 1212K Practice Exam Four...

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