Question: A mass of 3 kg nitrogen gas at 2000 K, V = C, cools with 500 W. What is dT/dt?

A mass of 3 kg nitrogen gas at 2000 K, V = C, cools with 500 W. What is dT/dt?

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Fundamentals of Thermodynamics 6th edition by Richard E. Sonntag, Claus Borgnakke, Gordon J. Van Wylen