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Problem: Ethane, a minority component of natural gas, burns to form carbon dioxide and water according to this reaction: 2 H3C-CH3(g) + 7 O2(g) → 4 CO2(g) + 6 H2O(g). Note that the average bond energy for the breaking of a bond in CO2 is 799 kJ/mol. Use average bond energies to calculate ΔHrxn for this reaction.

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Ethane, a minority component of natural gas, burns to form carbon dioxide and water according to this reaction: 2 H3C-CH3(g) + 7 O2(g) → 4 CO2(g) + 6 H2O(g). Note that the average bond energy for the breaking of a bond in CO2 is 799 kJ/mol. Use average bond energies to calculate ΔHrxn for this reaction.

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Our tutors have indicated that to solve this problem you will need to apply the Bond Energy concept. If you need more Bond Energy practice, you can also practice Bond Energy practice problems.