The temperature of a brass piece weighing 0.2 kg is 365 degrees. How much heat it will transfer

The temperature of a brass piece weighing 0.2 kg is 365 degrees. How much heat it will transfer to surrounding bodies when it cools down to a temperature of 15 degrees.

To find out the heat given off by the specified brass part to the surrounding bodies, consider the formula: Qx = Cl * md * (tout – t), where Cl – beats. heat capacity of brass (const; Cl = 378 J / (kg * K)); md is the mass of the specified brass part (md = 0.2 kg); tin – the initial temperature of the part (tin = 365 ºС); t – required temperature (t = 15 ºС).

Let’s perform the calculation: Qx = Cl * md * (tinx – t) = 378 * 0.2 * (365 – 15) = 26.46 * 10 ^ 3 J.

Answer: The heat given off by the indicated brass part to the surrounding bodies is equal to 26.46 kJ.