Extent of Reaction 100 A 100 B 20 10 10 20 Chem 1036 of 36

Extent of reaction 100 a 100 b 20 10 10 20 chem 1036

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Extent of Reaction 100% A 100% B ' -20 -10 0 +10 +20 Chem 1036 Chapter 20 35 of 36 Example Problem : Calculate K for the following reaction at 25°C: 2Fe 2 O 3 ( s ) + 3C( s ) o 4Fe( s ) + 3CO 2 ( g ) Remember ' G° is +304.1 kJ. (Should K be large or small?) ' G° = RT ln K Chem 1036 Chapter 20 36 of 36 Summary of Equations ' S = q T ' S = ' H system T ' S = 6 nS° products 6 nS° reactants ' G° = ' T ' ' H° = 6 n ' H f ° (products) 6 n ' H f ° (reactants) ' G° = 6 n ' f (products) 6 n ' f (reactants) ' G = ' G° + RT ln Q ' G° = RT ln K
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