Given the following combustion of octane below C8 H18 + O2(g) CO2«g) + H2O If oxygen and carbon dioxide are in the gas phase, what should be the phases of octane and water that will result in the most exothermic heat of reaction. The heats of formation of both octane and water are exothermic. a. C3H18(), H2O(1) b. C3H18(), H2O(v) c. C8H18(v), H20(1) d. C3H18(v), H2O(v)

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Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.132QP
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Given the following combustion of octane below
C8 H18 + O2(g)
CO2(3) + H2O
If oxygen and carbon dioxide are in the gas phase, what should be the phases of
octane and water that will result in the most exothermic heat of reaction. The heats
of formation of both octane and water are exothermic.
a. C3H18(1), H2O(1)
O b. C3H18(), H20(v)
c. C3H18(v), H2O(1)
d. C3H18(v), H2O(v)
O O
Transcribed Image Text:Given the following combustion of octane below C8 H18 + O2(g) CO2(3) + H2O If oxygen and carbon dioxide are in the gas phase, what should be the phases of octane and water that will result in the most exothermic heat of reaction. The heats of formation of both octane and water are exothermic. a. C3H18(1), H2O(1) O b. C3H18(), H20(v) c. C3H18(v), H2O(1) d. C3H18(v), H2O(v) O O
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