When heated from 72 ° C to 220 ° C, the brick oven gave the environment 52500 kJ. heat the mass of the brick oven.

| January 14, 2021 | education

When heated from 72 ° C to 220 ° C, the brick oven gave the environment 52500 kJ. heat the mass of the brick oven. The specific heat capacity of a brick is 750 J. kg. hail.

The mass of a brick oven can be calculated using the formula:
Q = C * m * Δt, where Q is the amount of heat that the furnace has given (received) (Q = 52500 kJ = 52500 * 10 ^ 3 J), C is the specific heat capacity of the material of which the furnace consists (brick, C = 750 J / (K * kg)), m is the required mass of the furnace, Δt is the change in the furnace temperature (according to the condition Δt = (220 – 72) ºС).
Let us express the mass of the furnace from the formula and calculate:
m = Q / (C * Δt) = 52500 * 10 ^ 3 / (750 * (220 – 72)) ≈ 473 kg.
Answer: The mass of a brick oven is 473 kg.



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