4u c7.5 Equilibrium Review

4u c7.5 Equilibrium Review - SCH 4U Chapter 7 Chemical...

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SCH 4U Chapter 7 Chemical Systems in Equilibrium Review Exercises Theories 1. For the reaction: H 2 (g) + N 2 (g) ↔ NH 3 (g) H o = -92 kJ Write the K eq equation and complete the following chart: Stress Equilibrium [N 2 ] (g) [H 2 ] (g) [NH 3 ] (g) K eq Shift Add N 2 (g) Right Decreases Increases No Change Add H 2 (g) Add NH 3 (g) Remove N 2 (g) Remove H 2 (g) Remove NH 3 (g) ↑ Temperature ↓ Temperature ↑ Pressure ↓ Pressure Add Catalyst 2. Write the expression for the equilibrium constant and indicate the units: a) CO (g) + O 2 (g) ↔ CO 2 (g) b) KClO 3 (s) ↔ KCl (s) + O 2 (g) c) H 2 O (l) ↔ H + (aq) + OH - (aq) d) Li 2 CO 3 (s) ↔ Li + (aq) + CO 3 2- (aq) e) Fe 2+ (aq) + MnO4 - (aq) + H + (aq) ↔ Fe 3+ (aq) + Mn 2+ (aq) + H 2 O (l) 3. How would each of the above K eq change if: a) The temperature is increased. b) The pressure is decreased. 4. What conditions of pressure and temperature give a high yield (quantitative reaction) of the following? a) 2SO
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This note was uploaded on 05/31/2011 for the course CHEM 4U taught by Professor Jargin during the Spring '11 term at York University.

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4u c7.5 Equilibrium Review - SCH 4U Chapter 7 Chemical...

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