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Unit 10F Practice Problems II Le Chateliers Principle

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Equilibrium and Le Chatelier's Principle Practice Problems. 1. N2(g) + 3H2(g) ? 2NH3(g). For the synthesis of ammonia at 500°C the equilibrium constant is 



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Chapter 15 Chemical Equilibrium The Concept of Equilibrium

Use Le Chatelier's principle to predict how changing the concentrations volume

1.

N2(g) + 3H2ļ3(g)

For the synthesis of ammonia at 500°C, the equilibrium constant is 6.0 × 10-. Predict the a. [NH3]0 - M; [N2]0 -M; [H2]0 - M b. [NH3]0 - M; [N2]0 - M; [H2]0 - M c. [NH3]0 - M; [N2]0 M; [H2]0 - M

2. Carbon monoxide reacts with steam to

2O(g) ļ 2(g) + H2(g)

Assume that the

2

2(g) + F2(g) ļ

Dinitrogen tetroxide in its liquid state was used as one of the fuels on the lunar lander for the

2O4(g) ļ 2(g)

2O4 2O4 2( Assume that gaseous hydrogen iodide is synthesized from hydrogen gas and iodine vapor at a

2. Suppose HI at 5.000 × 10- 2

- 2 - At a certain temperature a 1.003(g) and 8.70 x 10-

5(g). After the system had reached equilibrium, 2.00 x 10- 2(g)

5

5(g) ļ 3(g) + Cl2(g)

Arsenic can be extracted from its ores by first reacting the ore with oxyroasting)

4O6, which is then reduced using carbon:

4O6(s) + 6 C(s) ļ As4(g) + 6 CO(g)

Addition of

Addition or removal of 4O6)

Removal of gaseous arsenic (As4)

8. Predict the shift in equilibrium position that will occur for each of the following processes

The preparation of liquid phosphorus trichloride by the reaction:

4(s) + 6 Cl2(g) ļ 4 PCl3(l)

The preparation of gaseous phosphorus pentachloride according to the equation:

3(g) + Cl2(g) ļ PCl5(g)

The reaction of phosphorus trichloride with ammonia:

3(g) + 3 NH3(g) ļP(NH2)3(g) + 3 HCl(g)

9. For each of the following reactions, predict how the value of K changes as the temperature is

N2(g) + O2(g) ļ gǻH° = 181 kJ

22(g) + O2(g) ļ 3(gǻH

1. (NMSI

(NMSI ex. 10)2O] = 0.613 M

2] = [H2] = 1.387 M

(NMSI ex. 11)2] = [F2] = 0.472 M (NMSI ex. 8)2] = 0.600 atm (NMSI ex. 12)HI - H2 - I2 - (NMSI ex. 9)2] = 2.00 x 10-

3] = 0.300 M

5] = 6.70 x 10-

(NMSI ex. 13) (NMSI ex. 14) (NMSI ex. 15) Go to NMSI website to watch how to solve these problems: http://vimeo.com/16781414quotesdbs_dbs46.pdfusesText_46
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