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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: Principles and Practice
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.33QE: The enthalpy change for the following reaction is 393.5 kJ. C(s,graphite)+O2(g)CO2(g) (a) Is energy...
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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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