A solid body weighing 4 kg gives the environment 800 KJ of energy and cools down by 1000C.
| August 5, 2021 | education
A solid body weighing 4 kg gives the environment 800 KJ of energy and cools down by 1000C. What is the specific heat of a body?
Initial data: m (solid mass) = 4 kg; Q (the amount of heat that a solid gave to the environment) = 800 kJ (800 * 10 ^ 3 J); Δt (change in temperature of a solid) = 1000 ºС.
The specific heat of a solid can be expressed from the formula: Q = C * m * Δt, whence C = Q / (m * Δt).
Calculation: C = 800 * 10 ^ 3 / (4 * 1000) = 200 J / (kg * ºС).
Answer: The specific heat capacity of a solid is 200 J / (kg * ºС).
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