Some metal weighing 400 g, taken at the melting point, was transferred
| June 26, 2021 | education
Some metal weighing 400 g, taken at the melting point, was transferred to a heat quantity of 156 kJ. What is this metal if it is completely melted?
Initial data: m (mass of some metal) = 400 g; Q (the amount of heat transferred to a certain metal) = 156 kJ; the metal is at its melting point.
SI system: m = 400 g = 0.4 kg; Q = 156 kJ = 156 * 10 ^ 3 J.
The metal can be determined by the specific heat of fusion, which is calculated by the formula: Q = λ * m, whence λ = Q / m.
Calculation: λ = 156 * 10 ^ 3 / 0.4 = 390,000 J / kg = 3.9 * 10 ^ 5 J / kg.
Answer: The obtained value of the specific heat of fusion corresponds to aluminum.
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