What amount of heat is required to heat copper with a mass of 100 g from 15 s to 95 s, if the specific
| July 2, 2021 | education
What amount of heat is required to heat copper with a mass of 100 g from 15 s to 95 s, if the specific heat capacity of copper is 400 J / kg * s
Given: m (mass of copper to be heated) = 100 g (in SI m = 0.1 kg); t0 (temperature before heating) = 15 ºС; t (final temperature of copper) = 95 ºС.
Constants: according to the condition Cm (specific heat of copper) = 400 J / (kg * ºС).
The heat required to heat 100 g of copper is calculated by the formula: Q = Cm * m * (t – t0).
Calculation: Q = 400 * 0.1 * (95 – 15) = 400 * 0.1 * 80 = 3.2 * 10 ^ 3 J (3.2 kJ).
Answer: To heat 100 g of copper, 3.2 kJ of heat is required.
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