A heated stone weighing 3 kg, cooling by 20 (degrees Celsius), gives off 24 kJ of energy
| September 24, 2021 | education
A heated stone weighing 3 kg, cooling by 20 (degrees Celsius), gives off 24 kJ of energy to the surrounding space. Determine the specific heat of the heat capacity of the stone
m = 3 kg.
Δt = 20 ° C.
Q = 24 kJ = 24000 J.
C -?
The amount of thermal energy Q, which is released during the cooling of the stone, is determined by the formula: Q = C * m * Δt.
C = Q / m * Δt.
C = 24000 J / 3 kg * 20 ° C = 400 J / kg * ° C.
Answer: the specific heat of the stone is C = 400 J / kg * ° C.
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