Calculate the Amount of Heat Energy, in Units of Kilojoules $\degree$

Multiple Choice

Calculate the amount of heat energy, in units of kilojoules, required to convert 50.0 g of liquid ethanol, CH₃CH₂OH, at 25.5 $\degree$ C to gaseous ethanol at 92.0 $\degree$ C.(C_{ethanol liquid} = 2.44 J/g $\degree$ C; C_{ethanol gas} = 1.42 J/g $\degree$ C; molar heat of vaporization of liquid ethanol = 3.86 x 10⁴ J/mol.The boiling point of ethanol is 78.4 $\degree$ C and its molar mass is 46.07 g/mol.)

A) 49.3 kJ
B) 1.93 x 10³ kJ
C) 0.862 kJ
D) 1.35 x 10² kJ
E) 2.67 kJ