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youngbloodz youngbloodz
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2 months ago

Octane (C8H18) undergoes combustion according to the following thermochemical equation.

2C8H18(l) + 25O2(g) → 16CO2(g) + 18H2O(l)  

ΔH°rxn = –1.0940 × 104 kJ/mol

What is the standard enthalpy of formation of liquid octane?

ΔH°f(CO2(g)) = –393.5 kJ/mol and ΔH°f(H2O(l)) = –285.8 kJ/mol



▸ –250 kJ/mol

▸ –10,940. kJ/mol

▸ –2188 kJ/mol

▸ –495 kJ/mol

▸ 495 kJ/mol
Textbook 
Chemistry: Atoms First

Chemistry: Atoms First


Edition: 4th
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dreamkheidreamkhei
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2 months ago
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youngbloodz Author
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2 months ago
Correct Slight Smile TY
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Thank you, thank you, thank you!
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Good timing, thanks!
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