How much heat is needed to melt 100 g of zinc taken at the melting point?

univerkov | June 20, 2021 | education

Initial data: m (mass of zinc for melting) = 100 g or 0.1 kg; zinc is at its melting point.

Constants: λ (specific heat of fusion) = 112.2 kJ / kg or 112.2 * 10 ^ 3 J / kg.

Calculation formula: Q = λ * m.

Let’s perform the calculation: Q = 112.2 * 10 ^ 3 * 0.1 = 11.22 * 10 ^ 3 J or 11.22 kJ.

Answer: To melt 100 g of zinc, 11.22 kJ of heat is needed.

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