Question

In a heat transfer process, a 20 kg metal part: What is the specific information or calculation needed for this heat transfer process?

Answer 1

In this case, the specific heat is found to be 0.15625 kJ/(kg·°C).

Step-by-step explanation:

The specific information needed for the heat transfer process involving a 20 kg metal part is the change in temperature and the amount of heat absorbed. From the provided example, we can determine the specific heat of the metal by using the formula:

specific heat equals to heat absorbed divided by (mass x change in temperature)

In this case, the heat absorbed is 6.64 kJ, the mass is 20 kg, and the change in temperature is (43.6 °C - 22.4 °C) = 21.2 °C. Plugging the values into the formula, we get:

specific heat = 6.64 kJ / (20 kg x 21.2 °C) = 0.15625 kJ/(kg·°C).