As 7710 Kg Copper Bar Is Put into a Smelter for for Melting.The

Multiple Choice

As 771.0 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) 4.73 × 10⁵ kJ
B) 3.15 × 10¹¹ kJ
C) 3.15 × 10⁸ kJ
D) 5.62 × 10⁵ kJ