How much heat is required to heat a piece of copper weighing 4 kg from 25 ° C to 50 ° C?
| April 25, 2021 | education
Heat capacity of copper C = 400 J / kg oC.
Temperature before heating t1 = 25 ° C after t2 = 50 ° C.
Copper mass m = 4 kg.
1. The amount of heat is determined by the formula:
Q = C * m * (t2 – t1)
2. We consider: Q = C * m * (t2 – t1) = 400 * 4 * (50 – 25) = 40,000 J = 40 kJ
Answer: Q = 40 kJ
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