Using the following equation for the combustion of octane, calculate the heat associated with the combustion of excess octane with 100.0 g of oxygen assuming complete combustion. The molar mass of octane is 114.33 g/mole. The molar mass of oxygen is 31.9988 g/mole.
2 C8H18 + 25 O2 → 16 CO2 + 18 H2O ΔH∘rxn = -11018 kJ
a. -1377 kJ
b. -4304 kJ
c. -11018 kJ
d. -2152 kJ
e. -17220 kJ
Frequently Asked Questions
What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Thermochemical Equation concept. You can view video lessons to learn Thermochemical Equation. Or if you need more Thermochemical Equation practice, you can also practice Thermochemical Equation practice problems.
What is the difficulty of this problem?
Our tutors rated the difficulty ofUsing the following equation for the combustion of octane, c...as low difficulty.
How long does this problem take to solve?
Our expert Chemistry tutor, Dasha took 3 minutes and 53 seconds to solve this problem. You can follow their steps in the video explanation above.
What professor is this problem relevant for?
Based on our data, we think this problem is relevant for Professor Lapeyrouse's class at UCF.