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18. A 10.2g piece of coal (carbon) is combusted completely beneath a calorimeter containing 800.0 mL of water. The initial temp of the water was 20.0°C, and the final temp was 62.7°C. Assuming complete transfer of heat from the carbon to the water, what is the molar enthalpy of combustion of carbon?

18. A 10.2g piece of coal (carbon) is combusted completely beneath a calorimeter containing 800.0 mL of water. The initial temp of the water was 20.0°C, and the final temp was 62.7°C. Assuming complete transfer of heat from the carbon to the water, what is the molar enthalpy of combustion of carbon?

Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter7: Chemical Energy
Section: Chapter Questions
Problem 62E: In a coffee-cup calorimeter, 1.60 g NH4NO3 is mixed with 75.0 g water at an initial temperature of...
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18. A 10.2g piece of coal (carbon) is combusted completely beneath a calorimeter containing 800.0 mL of water. The initial temp of the water was 20.0°C, and the final temp was 62.7°C. Assuming complete transfer of heat from the carbon to the water, what is the molar enthalpy of combustion of carbon?
Transcribed Image Text:18. A 10.2g piece of coal (carbon) is combusted completely beneath a calorimeter containing 800.0 mL of water. The initial temp of the water was 20.0°C, and the final temp was 62.7°C. Assuming complete transfer of heat from the carbon to the water, what is the molar enthalpy of combustion of carbon?
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