p14 - CHAPTER 14- Practice Exercise Dr. PAHLAVAN_ Chemical...

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CHAPTER 14- Practice Exercise Dr. PAHLAVAN________ Chemical Equilibrium Problem #1. Write the equilibrium-constant expression (K c and/or K p ) for the following reactions: (a) H 2 (g) + I 2 (g ) 2HI (g) (b) 2Cl 2 (g) + 2H 2 O (g) 4HCl (g) + O 2 (g) (c) H 2 (g) + Br 2 (l) HBr (g) (d) Ag(CN) - 2 (aq) + AgI (s) I - (aq) + 2AgCN (s) Problem #2. How is the equilibrium-constant expression (K c ) for the reaction: 2NO (g) N 2 (g) + O 2 (g) ; K c =0.145; related to the following reaction? (a) N 2 (g) + O 2 (g) 2NO (g) K 1 =.... ……… (b) 4NO (g) 2N 2 (g) + 2O 2 (g) K 2 =.... ……. .. (c) NO (g) 1/2 N 2 (g) + 1/2 O 2 (g) K 3 = . ...……. . (d) 1/2 N 2 (g) + 1/2 O 2 (g) NO (g) K 4 =.... ……… Problem #3. Given K c or K p for the following reactions, what is the value of K p or K c ? (a) I 2 (g) + Cl 2 (g) 2ICl (g) ; K c = 2.0 x10 5 at 25 o C (b) N 2 O 4 (g) 2NO 2 (g) ; K c = 0.90 at 120 o C (c) CaCO 3 (s) CaO (s) + CO 2 (g); K p = 1.67 x 10 2 at 740 o C Problem #4. Iodine molecules react reversibly with iodide ions to produce trioxide ions I 2 (aq) + I - (aq) ↔ I
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This note was uploaded on 09/24/2011 for the course CHEM 369 taught by Professor Wang during the Spring '11 term at University of Houston.

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p14 - CHAPTER 14- Practice Exercise Dr. PAHLAVAN_ Chemical...

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