An artist crafting a piece of metal in the forging studio plunges the hot metal into oil in order to harden it. The metal piece has a mass of 56 kg and its specific heat is 429.7 J/(kg · K). The artist uses 810 kg of oil at 35°C, with a specific heat of 2999 J/(kg · K), for the process. Once the metal is immersed in the oil, the temperature reaches an equilibrium value of 41°C. How hot was the forged metal piece just before it was plunged it into the oil?

An artist crafting a piece of metal in the forging studio plunges the hot metal into oil in order to harden it. The metal piece has a mass of 56 kg and its specific heat is 429.7 J/(kg · K). The artist uses 810 kg of oil at 35°C, with a specific heat of 2999 J/(kg · K), for the process. Once the metal is immersed in the oil, the temperature reaches an equilibrium value of 41°C. How hot was the forged metal piece just before it was plunged it into the oil?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter18: Heat Engines, Entropy, And The Second Law Of Thermodynamics

Section: Chapter Questions

Problem 27P

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