Octane has a vapor pressure of 13.95 torrat 25 C and a vapor pressure of 144.78 torr at 75 C. Gasoline is a mixture of hydrocarbons, a major component of which is octane. Use the Clausius-Clapeyron equation to determine the heat of vaporization of octane.
ln(P2/P1)=(-ΔHvap/R)(1/T2 - 1/T1)
Determine the normal boiling point of octane by using the equation and data in part (a) .