0. A common gasoline additive is octane, C8H18. When octane is burned it produces heat
according to the following equation.
2C8H18(l) + 25O2
(g) → 18H2O(g) + 16CO2
(g) ΔH = 1.02 x 10
4
kJ
How much heat is produced per mole of octane?
According to the balanced equation, 2 moles of octane (C8H18) produce 1.02 x 10^4 kJ of heat. Therefore, per mole of octane, the amount of heat produced would be:
(1.02 x 10^4 kJ) / 2 = 5.1 x 10^3 kJ
To find out how much heat is produced per mole of octane, we need to use the given values in the balanced equation and calculate the molar heat of combustion.
From the balanced equation, we can see that 2 moles of octane (C8H18) produce 1.02 x 10^4 kJ of heat. Therefore, 1 mole of octane would produce 1/2 of that amount of heat.
So, the amount of heat produced per mole of octane is (1.02 x 10^4 kJ) / 2 = 5.1 x 10^3 kJ per mole of octane.