Calculate the amount of heat required to melt 10 g tin taken at a temperature of 0 degrees Celsius.

Problem data: m (mass of tin for melting) = 10 g (in SI m = 0.01 kg); t0 (initial tin temperature) = 0 ºС.

Reference values: Co (specific heat of tin) = 230 J / (kg * K); tmelt (temperature of the beginning of melting) = 231.9 ºС; λ (specific heat of fusion) = 0.59 * 10 ^ 5 J / kg.

Heat for melting 10 g of tin: Q = Q1 + Q2 = Co * m * (tm – t) + λ * m = m * (Co * (tm – t) + λ).

Let’s perform the calculation: Q = 0.01 * (230 * (231.9 – 0) + 0.59 * 10 ^ 5) = 1123.37 J.

Answer: You need 1123.37 Joules of heat.



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