A glass contains 200 g of warm water at 78.0ᵒC. A piece of gold at 2.30ᵒC is placed in the water. The final temperature reached by this system is 76.9ᵒC. What was the mass of gold? The specific heat of water is 4.184 J/gᵒC, and that of gold is 0.129 J/gᵒC

Principles of Physics: A Calculus-Based Text
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ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
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Chapter17: Energy In Thermal Processes: The First Law Of Thermodynamics
Section: Chapter Questions
Problem 2OQ: A 100-g piece of copper, initially at 95.0C, is dropped into 200 g of water contained in a 280-g...
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 A glass contains 200 g of warm water at 78.0ᵒC. A piece of gold at 2.30ᵒC is placed in the water. The final temperature reached by this system is 76.9ᵒC. What was the mass of gold? The specific heat of water is 4.184 J/gᵒC, and that of gold is 0.129 J/gᵒC

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