Question
19, Consider the following information about the combustion of octane (CaHis), the principle component
of gasoline.
2C8HI8()+25O2(g)
16CO2(g) + 18H20()
AH -1080 k
If 1.14 g of octane are burned in a calorimeter surrounded by 1.0 kg of water, what is the temperature change
of the water? The specific heat of water is 4.184 J/g°C.
a. 1.3°C
b. 2.6°C
c. -1.3°C
d. -2.6°C

Image Transcription

19, Consider the following information about the combustion of octane (CaHis), the principle component of gasoline. 2C8HI8()+25O2(g) 16CO2(g) + 18H20() AH -1080 k If 1.14 g of octane are burned in a calorimeter surrounded by 1.0 kg of water, what is the temperature change of the water? The specific heat of water is 4.184 J/g°C. a. 1.3°C b. 2.6°C c. -1.3°C d. -2.6°C

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