What amount of heat is released during cooling of 3 tons of cast iron by 100 degrees?

m = 3 t = 3000 kg. C = 540 J / kg * “C. Δt = 100” C. Q -? The amount of heat Q, which is released during the cooling of cast iron, is determined by the formula: Q = C * m * Δt, where C is the specific heat capacity of the cast iron, m is the mass of cast iron, Δt is the change in the temperature of the cast iron. Q = 540 J / kg * “C * 3000 kg * 100” C = 162,000,000 J = 162 MJ.
Answer: during the cooling of cast iron, Q = 162,000,000 J = 162 MJ of thermal energy was released.