When heating an aluminum bar for 1C, 880 J of heat is spent. what is the mass of this bar?

univerkov | September 25, 2021 | education

Initial data: Δt (temperature change of an aluminum bar during heating) = 1 ºС; Q (consumed amount of heat) = 880 J.

Reference data: Ca (specific heat capacity of aluminum) = 920 J / (kg * ºС).

We express the mass of an aluminum bar from the formula: Q = Ca * m * Δt, whence m = Q / (Ca * Δt).

Let’s calculate: m = 880 / (920 * 1) ≈ 0.957 kg (957 g).

Answer: An aluminum bar weighs 957 grams.

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