How much heat will be released when a 100 g iron rivet is cooled by 900 degrees?

univerkov | October 6, 2021 | education

Initial data: m (weight of the iron rivet) = 100 g (0.1 kg); Δt (rivet temperature change during cooling) = 900 ºС.

Reference values: Czh (specific heat of iron) = 460 J / (kg * K).

The amount of heat released during cooling of the taken iron rivet is determined by the formula: Q = Cc * m * Δt.

Calculation: Q = 500 * 0.1 * 900 = 41.4 * 10 ^ 3 J (41.4 kJ).

Answer: When the iron rivet is cooled, 41.4 kJ of heat will be released.

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