AnswerKeyQuiz1A2006

AnswerKeyQuiz1A2006 - 1 NAME: CHM 2046 Q uiz 1B Spring,...

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K p = 11.3 m equilibriu at not K Q 333 (1.2) (0.12) (2.4) ] [O ] [SO ] [SO Q c c 2 2 2 2 2 2 3 c = = = Qc > Kc reaction proceeding to the left. 11.3 0) (0.082)(30 .279 RT Kc Kp = = = [ ][ ] [ ] 2 3 3 2 2 NH H N NAME: CHM 2046 Quiz 1B Spring, 2006 Be careful to give your final answer to the correct significant figures. SEE THE END FOR USEFUL INFORMATION. Show your work. 1. a) (2 points each) Balance the following reactions and write down their mass-action expression, Q c . 2 NH 3 (g)    N 2 (g) + 3 H 2 (g) Q c = 2 H 2 O 2 (g) + 2 NO (g) 2 H 2 O (g) + N 2 O 4 (g) Q c = [ ] [ ] [ ] [ ] 2 2 2 2 4 2 2 2 NO O H O N O H b) (5 points) At a particular temperature, K c = 279 for the reaction 2 SO 2 (g) + O 2 (g) 2 SO 3 (g) In a particular reaction carried out, the pressures of the gases at a particular time are 0.12 atm (atmospheres) of SO 2 , 1.2 atm of O 2 , and 2.4 atm of SO 3 . Has the reaction reached equilibrium yet? Explain. If not, in which direction is it proceeding? Explain.
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AnswerKeyQuiz1A2006 - 1 NAME: CHM 2046 Q uiz 1B Spring,...

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