A 771.0-kg copper bar is put into a smelter for melting. The initial temperature of the copper is 300.0 K
How much thermal energy 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 205,000 J/kg, and its melting point is 1357 K. A) 4.73 × 105 kJ
B) 3.15 × 1011 kJ
C) 3.15 × 108 kJ
D) 5.62 × 105 kJ
A
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