What amount of heat will a brick kiln weighing 0.35 tons give, cooling down with a temperature change of 50 degrees?

To find out the heat given off by the specified brick oven when its temperature changes (decreases), we will use the formula: Q = Cк * mp * Δt.

Const: Cк – beats. the heat capacity of the brick (for fireclay bricks Cc = 930 J / (kg * K)).

Data: mp – the mass of the specified brick kiln (mp = 0.35 t; in the SI system mp = 350 kg); Δt is a given change in the furnace temperature (Δt = 50 ºС).

Let’s perform the calculation: Q = Ck * mp * Δt = 930 * 350 * 50 = 16275 * 10 ^ 3 J ≈ 16.3 MJ.

Answer: The specified brick oven must give off heat in the amount of 16.3 MJ.



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