Practice Quiz 3A 2009

Practice Quiz 3A 2009 - CHM 2046 Quiz 3A Answer all...

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CHM 2046 Quiz 3A March 31, 2006 Answer all questions.  Look at the end for useful information. 1. Consider the two reactions below. 2 Mg (s) + O 2  (g)   2 MgO (s)  G° = - 1138 kJ  CO 2  (g)    CO (g) + ½O 2  (g) G° = + 257 kJ a) (4 points)  What is the resulting reaction obtained from coupling the above reactions together (no  O 2  (g) should appear)? b) (4 points)  What is  G° for the reaction in part a)? 2. The reaction below at 298 K has an equilibrium constant of 3.89 x 10 -34 . 2 HCl (g)   H 2  (g) + Cl 2  (g) a) (2 points)  Does the equilibrium lie far to the left, far to the right, or somewhere near the middle?         The equilibrium lies (                                        ). b) (7 points)  Calculate  G° for this reaction. c)
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This note was uploaded on 05/18/2011 for the course CHM 2046 taught by Professor Veige/martin during the Spring '07 term at University of Florida.

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Practice Quiz 3A 2009 - CHM 2046 Quiz 3A Answer all...

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