1422-Exam-1-2009

1422-Exam-1-2009 - CHEM 1422 Exam # 1 (Feb 19, 2009) Name...

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CHEM 1422 Exam # 1 (Feb 19, 2009) Name (printed): _________________________ st part of Equilibrium Name (signed): _________________________ Put a big X this box if you want your graded exam put out in the public racks outside Prof. Stanley’s office after grading . If you don’t check it, Prof. Stanley will keep your exam and you will have to stop by to pick it up from him personally. 1. (5 pts) Qualitatively, for which of the following reactions will S rxn increase the most ? Circle the correct answer and provide clear justification/reasoning for your choice in the space to the left of the answers. a) Cu 2+ ( aq ) + Zn( s ) Cu( s ) + Zn 2+ ( aq ) b) AgCl( s ) + Br ( aq ) AgBr( s ) + Cl ( aq ) c) 3C 2 H 2 ( g ) C 6 H 6 ( l ) d) 2HgO( s ) 2Hg( l ) + O 2 ( g ) e) 2SO 2 ( g ) + O 2 ( g ) 2SO 3 ( g ) 2. (5 pts) Which of the following substances has the highest absolute Entropy? Circle the correct answer and provide clear justification/reasoning for your choice in the space to the right of the answers. a) H 2 Te( g ) b) H 2 S( g ) c) NH 3 ( g ) d) H 2 O( l ) e) LiBH 4 ( s ) 3. (5 pts) What is rxn for the following reaction? f (PCl 3 ) = 320 kJ/mol; P 4 = elemental P. Circle the correct answer and provide clear justification/reasoning for your choice in the space to the right of the answers. P
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This note was uploaded on 11/12/2011 for the course CHEM 1422 taught by Professor Staff during the Fall '08 term at LSU.

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1422-Exam-1-2009 - CHEM 1422 Exam # 1 (Feb 19, 2009) Name...

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