20B_HW4 - AgCl•NH 3(s ⎯ ⎯ ← ⎯→ ⎯ AgCl(s NH...

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CHEM 20B Winter 2010 Homework #4 - Due Wednesday, February 3 rd 1. Oxtoby 14.6 2. Oxtoby 14.18 3. Oxtoby 14.30 4. Oxtoby 14.44 5. Oxtoby 14.80 6. At 627 ° C and 1.00 atm, SO 3 is partly dissociated into SO 2 and O 2 : SO 3 (g) SO 2 (g) + ½O 2 (g). The density of the equilibrium mixture is 0.925 g/liter. What is the partial pressure of each species at equilibrium and what is the equilibrium constant for this reaction at 627 ° C? 7. (a) Write an expression for the equilibrium constant for the endothermic reaction:
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Unformatted text preview: AgCl•NH 3 (s) ⎯ ⎯ ← ⎯→ ⎯ AgCl (s) + NH 3 (g) What is the effect on P NH 3 at equilibrium if (b) additional AgCl (s) is added or (c) if additional NH 3 (g) is pumped into or out of the system, provided that neither of two solids phases shown in the chemical equation are completely used up? (d) What is the effect on the P NH 3 of lowering the temperature? Why?...
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