Determine the amount of heat required to heat a 50 kg copper body from 20 ° C to 50 ° C.

The required amount of heat for heating is calculated by the formula:
Q = C * m * (tк – tн), where C is the specific heat capacity of copper (we take C = 385 J / (K * kg)), m is the mass of the copper body (m = 50 kg), tк is the final temperature of the body ( tк = 50 ºС), tн – initial body temperature (tн = 20 ºС).
Let’s calculate the amount of heat for heating:
Q = C * m * (tк – tн) = 385 * 50 * (50-20) = 385 * 50 * 30 = 577,500 J = 577.5 kJ.
Answer: To heat a copper body, 577.5 kJ of heat is needed.