How much heat does it take to melt 3 x 102 kg of copper?

Answer 1

To calculate the heat required to melt 3 x 10² kg of copper, we use the formula ( Q = m \cdot L_f ), where ( Q ) is the heat, ( m ) is the mass, and ( L_f ) is the latent heat of fusion for copper, which is approximately 200 kJ/kg. For 3 x 10² kg of copper, the heat required would be ( Q = 3 \times 10² , \text{kg} \times 200 , \text{kJ/kg} = 60,000 , \text{kJ} ). Thus, it takes about 60,000 kJ of heat to melt that amount of copper.