
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Transcribed Image Text:Calculate AGxn for the following reaction:
4CO (g) + 2NO₂(g) →4CO2 (g) + N₂ (9).
=-
Use the following reactions and given AGrxn values:
2NO(g) + O₂(g) →2NO₂ (g), AGxn - 72.6 kJ
2CO(g) + O₂(g) →2CO2 (g), AGxn=-514.4 kJ
O2(g) + N₂(g) →NO(g), AGixn = 87.6 kJ
Express your answer using one decimal place.
AGxn
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Transcribed Image Text:When ethanol (CH3 CH₂OH) is combusted, such as when in a gasoline blend, the following reaction occurs:
Based on the standard free energies of formation given in the table below, what is the standard free energy change for this reaction?
Express your answer to one decimal place and include the appropriate units.
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1370.4
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2CH3 CH₂OH(1) + 602(g) →4CO2(g) + 6H₂O(g)
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Substance
CH3CH₂OH(1)
O₂ (g)
CO₂(g)
H₂O(g)
AG
(kJ/mol)
-174.9
0
-394.4
-228.6
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