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1 List the various stages in your experiment that could lead to inaccuracy in your final results. How would these affect the overall value you obtained for the enthalpy of combustion? Which would have the largest impact on the overall results?

1 List the various stages in your experiment that could lead to inaccuracy in your final results. How would these affect the overall value you obtained for the enthalpy of combustion? Which would have the largest impact on the overall results?

Organic Chemistry
Organic Chemistry
8th Edition
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Chapter5: Alkenes: Bonding, Nomenclature, And Properties
Section: Chapter Questions
Problem 5.31P
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For consideration 1 List the various stages in your experiment that could lead to inaccuracy in your final results. How would these affect the overall value you obtained for the enthalpy of combustion? Which would have the largest impact on the overall results? 2 If the next member of the homologous series of alcohols were used (butanol), what would you expect the enthalpy of combustion to be? 3 Why would you expect a (roughly) similar increase in enthalpy of combustion between members of a homologous series?
Transcribed Image Text:For consideration 1 List the various stages in your experiment that could lead to inaccuracy in your final results. How would these affect the overall value you obtained for the enthalpy of combustion? Which would have the largest impact on the overall results? 2 If the next member of the homologous series of alcohols were used (butanol), what would you expect the enthalpy of combustion to be? 3 Why would you expect a (roughly) similar increase in enthalpy of combustion between members of a homologous series?
Aim To calculate the enthalpy of combustion of two fuels: ethanol and propanol Introduction A fuel is burnt and as much of the energy released as possible is transferred to water by heating. Using the fact that 4.18 J of energy are required to raise 1 g of water by 1 °C, the amount of energy given out by the fuel can be calculated. This can then be converted to the amount of energy given out per mole in order to calculate the enthalpy change of combustion of the fuel.
Transcribed Image Text:Aim To calculate the enthalpy of combustion of two fuels: ethanol and propanol Introduction A fuel is burnt and as much of the energy released as possible is transferred to water by heating. Using the fact that 4.18 J of energy are required to raise 1 g of water by 1 °C, the amount of energy given out by the fuel can be calculated. This can then be converted to the amount of energy given out per mole in order to calculate the enthalpy change of combustion of the fuel.
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