A 150-g aluminum cup contains 650 g of water in thermal equilibrium with the cup at 55°C. The combination of cup and water is cooled uniformly so that the temperature decreases by 2.5°C per minute. At what rate is energy being removed? Express your answer in watts.

A 150-g aluminum cup contains 650 g of water in thermal equilibrium with the cup at 55°C. The combination of cup and water is cooled uniformly so that the temperature decreases by 2.5°C per minute. At what rate is energy being removed? Express your answer in watts.

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter12: Thermal Energy

Section12.2: Changes Of State And The Laws Of Thermodynamics

Problem 34SSC

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A 150-g aluminum cup contains 650 g of water in thermal equilibrium with the cup at 55°C. The combination of cup and water is cooled uniformly so that the temperature decreases by
2.5°C per minute. At what rate is energy being removed? Express your answer in watts.
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