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, 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.