Sulfur Dioxide Has a Vapor Pressure of 462

Multiple Choice

Sulfur dioxide has a vapor pressure of 462.7 mm Hg at -21.0 °C and a vapor pressure of 140.5 mm Hg at -44.0 °C.What is the enthalpy of vaporization of sulfur dioxide? (R = 8.314 J/K⋅mol)

A) 0.398 kJ/mol
B) 6.33 kJ/mol
C) 14.0 kJ/mol
D) 24.9 kJ/mol
E) 39.8 kJ/mol