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A 100.0 g sample of copper is heated to 86.1 oC then allowed to cool. What is the final temperature if the sample releases 2.44 kJ of heat? The specific heat capacity of copper is 0.385 J/g°C.

A 100.0 g sample of copper is heated to 86.1 oC then allowed to cool. What is the final temperature if the sample releases 2.44 kJ of heat? The specific heat capacity of copper is 0.385 J/g°C.

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter5: Thermochemistry
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8. A 100.0 g sample of copper is heated to 86.1 oC then allowed to cool. What is the final temperature if the sample releases 2.44 kJ of heat? The specific heat capacity of copper is 0.385 J/g°C. 9. A piece of aluminum is heated to a temp of 71.8°C, then placed in 150.0 mL of water at 20.7°C until the water and metal reach a final temp of 25.6°C. Calculate the mass of the aluminum. Assume all the heat released by Al is absorbed by water. Specific heat of Al is 0.903 J/g°C, H2O is 4.184 J/g°C.
Transcribed Image Text:8. A 100.0 g sample of copper is heated to 86.1 oC then allowed to cool. What is the final temperature if the sample releases 2.44 kJ of heat? The specific heat capacity of copper is 0.385 J/g°C. 9. A piece of aluminum is heated to a temp of 71.8°C, then placed in 150.0 mL of water at 20.7°C until the water and metal reach a final temp of 25.6°C. Calculate the mass of the aluminum. Assume all the heat released by Al is absorbed by water. Specific heat of Al is 0.903 J/g°C, H2O is 4.184 J/g°C.
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