The Normal Boiling Point of Methanol Is 64

The normal boiling point of methanol is 64.7°C and the molar enthalpy of vaporization if 71.8 kJ/mol. The value of ΔS when 2.15 mol of CH₃OH (l) vaporizes at 64.7°C is __________ J/K.

A) 0.457
B) 5.21 × 10⁷
C) 457
D) 2.39 × 10³
E) 2.39