A 406.0 kg copper bar is put into a smelter for melting. The initial temperature of the copper is 300.0 K. How much heat must the smelter produce to completely melt the copper bar?
(The specific heat for copper is 386 J/kg ? K, the heat of fusion for copper is 205 kJ/kg, and its melting point is 1357 K.)
A) 2.49 × 105 kJ
B) 1.66 × 1011 kJ
C) 1.66 × 108 kJ
D) 2.96 × 105 kJ
Answer: A
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