How much heat is needed to heat 5 tons of zinc from 20 ° C to 400 ° C

univerkov | September 30, 2021 | education

Data: m (mass of heated zinc) = 5 t = 5 * 10 ^ 3 kg; tн (initial zinc temperature) = 20 ºС; tк (final temperature) = 400 ºС; SC (specific heat capacity of zinc) = 400 J / (kg * K).

Required heat: Q = Cц * m * (tк – tн) = 400 * 5 * 10 ^ 3 * (400 – 20) = 760 * 10 ^ 6 J.

Answer: To heat 5 tons of zinc, 760 MJ of heat is needed.

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