Problem data: m (mass of tin to be melted) = 450 g (in SI m = 0.45 kg); taken tin was at the melting temperature.
Reference values: according to the condition λ (specific heat of fusion of tin) = 60300 J / kg.
The required heat for melting 450 grams of tin is determined by the formula: Q = λ * m.
Let’s calculate: Q = 60300 * 0.45 = 27135 J.
Answer: To melt 450 grams of tin, 27 135 J of heat is required.
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