Explanation:
It is known that heat of fusion of copper is equal to 207 kJ/kg. Also, it is known that relation between heat energy and specific heat is as follows.
          Q = [tex]m \times H_{f}[/tex]
where, Â Â Â Q = heat energy
         m = mass
      [tex]H_{f}[/tex] = heat of fusion
Hence, putting the given values into the above formula to calculate heat energy as follows.
        Q = [tex]m \times H_{f}[/tex]
          = [tex]34.1 kg \times 207 kJ/kg[/tex]
          = 7058.7 kJ
Thus, we can conclude that 7058.7 kJ heat is added to melt the copper.
