As solid materials melt, there is an additional energy required to break the molecular bonds that form the solid and turn that solid into a liquid. This is L_f, the "heat of fusion" [J/kg]. There is also additional energy required to turn a liquid into a gas, L_v, the "heat of vaporization" [J/kg]. If you have 2 kg of ice at 0 C and want to turn that into water vapor at 100 C, how much heat is required (in J). For ice/water: L_f=334,000 J/kg, L_v=2,256,000 J/kg, and c_water=4190 J/kg/C.
A. 2 million
B. 4 million
C. 6 million
D. 8 million
E. 10 million