The Fluorocarbon C₂Cl₃F₃ Has a Normal Boiling Point of 47

The fluorocarbon C₂Cl₃F₃ has a normal boiling point of 47.6°C.The specific heats of C₂Cl₃F₃(l) and C₂Cl₃F₃(g) are 0.91 J/g∙K and 0.67 J/g∙K,respectively.The heat of vaporization of the compound is 27.49 kJ/mol.The heat required to convert 50.0 g of the compound from the liquid at 50.0°C to the gas at 80.0°C is ________ kJ.

A) 8.19
B) 1454
C) 30.51
D) 3031
E) 10.36