Octane has a vapor pressure of 40. torr at 45.1°C and 400. torr at 104.0°C. What is its heat of vaporization?
A) 39.0 kJ/mol
B) 46.0 kJ/mol
C) 590 kJ/mol
D) 710 kJ/mol
E) none of the above

Question

Quizplus · Accepted Answer

The heat of vaporization can be calculated using the Clausius-Clapeyron equation. Using the given vapor pressures and temperatures, the calculated heat of vaporization is approximately 39.0 kJ/mol.

Octane Has a Vapor Pressure of 40