Middle School

Determine the amount of energy needed to melt 100 kg of aluminum at its melting point.

The latent heat of fusion of aluminum is 93 kcal/kg at 660 degrees Celsius.

Answer :

Answer: 9300 kcal

Explanation: Given: Latent heat of fusion of aluminum is 93 kcal/kg.

That is for melting 1 kg of aluminium at 660[tex]^0C[/tex] amount of heat required is = 93kcal

Thus for 100 kg of aluminium at 660[tex]^0C[/tex] amount of heat required is= [tex]\frac{93}{1}\times 100=9300kcal[/tex]

Thus the amount of energy needed to melt 100 kg of aluminum at the melting point is 9300 kcal.