To heat 50 g of brass at 20 ° C, 400 J is required. what is the specific heat of brass?
| January 19, 2021 | education
Problem data: m (mass of brass taken) = 50 g (in SI m = 0.05 kg); Δt (temperature change of brass) = 20 ºС; Q (required heat) = 400 J.
The specific heat capacity of brass can be expressed from the formula: Q = Cl * m * Δt, whence Cl = Q / (m * Δt).
Calculation: Cl = 400 / (0.05 * 20) = 400 J / (kg * ºС).
Answer: The calculated value of the specific heat capacity of brass is 400 J / (kg * ºС).
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