22-acids_bases - PRS Question from Wed W h a t m u s t y o...

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1 Week 9 CHEM 1310 - Sections L and M 1 PRS Question from Wed What must you do to increase the value of K for the following exothermic reaction? 2 H 2 (g) + O 2 (g) 2 H 2 O(g) 1. Increase the total pressure 2. Decrease the total pressure 3. Increase the temperature 4. Decrease the temperature 5. Two of these K = [H 2 O] 2 [H 2 ] 2 x [O 2 ] Thus anything that shifts equilibrium to the RIGHT will increase K Week 9 CHEM 1310 - Sections L and M 2 PRS Question from Wed What must you do to increase the value of K for the following exothermic reaction? 2 H 2 (g) + O 2 (g) 2 H 2 O(g) PV = nRT Stress is relieved by shifting equilibrium to direction where there are fewer molecules… As P , V LEFT RIGHT 2 H 2 (g) + O 2 (g) 2 H 2 O(g) 3 mol 2 mol Week 9 CHEM 1310 - Sections L and M 3 PRS Question from Wed What must you do to increase the value of K for the following exothermic reaction? 2 H 2 (g) + O 2 (g) 2 H 2 O(g) PV = nRT “Stress” of lower pressure (i.e. greater volume) causes shift in equilibrium to side with more molecules! Consequently, lowering P… RIGHT LEFT 2 H 2 (g) + O 2 (g) 2 H 2 O(g) 3 mol 2 mol
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2 Week 9 CHEM 1310 - Sections L and M 4 PRS Question from Wed What must you do to increase the value of K for the following exothermic reaction? 2 H s (g) + O 2 (g) H 2 O(g) What impact would temperature changes have? Consider the analogy with H
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22-acids_bases - PRS Question from Wed W h a t m u s t y o...

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