A copper candlestick weighing 2 kg was heated to a temperature of 230 ° C. How much heat was released
| September 2, 2021 | education
A copper candlestick weighing 2 kg was heated to a temperature of 230 ° C. How much heat was released when the candlestick cooled down to a temperature of 30 ° C?
Initial data: m (mass of a copper candlestick) = 2 kg; t1 (temperature to which the candlestick was heated) = 230 ºС; t2 (final cooling temperature) = 30 ºС.
Reference values: С (specific heat capacity of copper) = 400 J / (kg * ºС).
The amount of heat released during the cooling of the copper candlestick is determined by the formula: Q = C * m * (t2 – t1).
Calculation: Q = 400 * 2 * (230 – 30) = 160,000 J (160 kJ).
Answer: When the copper candlestick cooled down, 160 kJ of heat was released.
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