How many degrees will a 200g copper soldering iron heat up if you transfer it the same amount of heat

How many degrees will a 200g copper soldering iron heat up if you transfer it the same amount of heat that goes to heating 10g tin from 20 to 232 degrees Celsius?

Data: m1 (soldering iron weight) = 200 g (0.2 kg); m2 (mass of tin) = 10 g (0.01 kg); t1 (initial tin temperature) = 20 ºС; t2 (final temperature) = 232 ºС.

Constants: C1 (specific heat capacity of copper) = 0.38 kJ / (kg * K) = 380 J / (kg * K); C2 (specific heat capacity of tin) = 0.23 kJ / (kg * K) = 230 J / (kg * K).

The change in the temperature of the copper soldering iron is determined from the equality: C1 * m1 * Δt = C2 * m2 * (t2 – t1); Δt = C2 * m2 * (t2 – t1) / (C1 * m1).

Calculation: Δt = 230 * 0.01 * (232 – 20) / (380 * 0.2) = 6.42 ºС.



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