Chap_13_HW_solutions

Chap_13_HW_solutions - Chapter 13 homework solutions

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Worked Solutions for Chapter 13 Homework 22. For the reaction N 2 (g) + 3 Cl 2 (g) 2 NCl 3 (g) an analysis of an equilibrium mixture is performed at a certain temperature. It is found that [NCl 3 ] = 1.9 x 10 -1 M, [N 2 ] = 1.4 x 10 -3 M, and [Cl 2 ] = 4.3 x 10 -4 M. Calculate K for the reaction at this temperature. 26. The following equilibrium pressures were observed at a certain temperature for the reaction: N 2 (g) + 3 H 2 (g) 2 NH 3 (g) . P NH3 = 3.1 x 10 -2 atm, P N2 = 8.5 x 10 -1 atm, and P H2 = 3.1 x 10 -3 atm. Calculate the value for the equilibrium constant K p at this temperature. If P N2 = 0.525 atm, P NH3 = 0.0167 atm, and P H2 = 0.00761 atm, does this represent a system at equilibrium?
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38. The reaction 2 NO (g) + Br 2 (g) 2 NOBr (g) has K p = 109 at 25 o C. If the equilibrium partial pressure of Br 2 is 0.0159 atm and the equilibrium partial pressure of NOBr is 0.768 atm, calculate the partial pressure of NO at equilibrium. 42. At a certain temperature, 4.0 mol NH 3 is introduced into a 2.0 L container, and the NH 3 partially dissociates by the reaction: 2 NH 3 (g) N 2 (g) + 3 H 2 (g) . At equilibrium, 2.0 mol of NH 3 remains. What is the value of K for this reaction?
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48. At 25
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This note was uploaded on 10/13/2009 for the course CHEM 105BLG at USC.

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Chap_13_HW_solutions - Chapter 13 homework solutions

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