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9. Calculate the standard enthalpy change of combustion of ethanol from the following standard enthalpies of formation: C₂H5OH (1) C(graphite) + O2(g) → CO2(g) H2(g) + 1/2O2(g) → H₂0 (1) 2 C(graphite) + 3 H2(g) + 1/2O2(g) → C₂H5OH(1) +302(g) → 2 CO2(g) + 3 H₂O(1) AH (CO₂) = -393.5 kJ/mol AH (H₂O) = -285.8 kJ/mol AH, (ethanol) = -277.1 kJ/mol

9. Calculate the standard enthalpy change of combustion of ethanol from the following standard enthalpies of formation: C₂H5OH (1) C(graphite) + O2(g) → CO2(g) H2(g) + 1/2O2(g) → H₂0 (1) 2 C(graphite) + 3 H2(g) + 1/2O2(g) → C₂H5OH(1) +302(g) → 2 CO2(g) + 3 H₂O(1) AH (CO₂) = -393.5 kJ/mol AH (H₂O) = -285.8 kJ/mol AH, (ethanol) = -277.1 kJ/mol

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter20: Environmental Chemistry-earth's Environment, Energy, And Sustainability
Section: Chapter Questions
Problem 35PS
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Pls help ASAP. Pls make sure to use the GRASS method for both the questions.

• Answer each question using full sentences and show all your work for any calculations. Ensure to use the GRASS method (Given, Required, Analysis, Solution, Statement) for questions involving calculations. 9. Calculate the standard enthalpy change of combustion of ethanol from the following standard enthalpies of formation: C2H5OH (1) +3 O2(g) → 2 CO2(g) + 3 H₂O(1) C(graphite) + O2(g) → CO2(g) H2(g) + 1/2O2(g) → H₂O(1) 2 C(graphite) + 3H2(g) + 1/2O2(g) → C₂H5OH (1) AH (CO₂) = -393.5 kJ/mol AH (H₂O) = -285.8 kJ/mol AH (ethanol) = -277.1 kJ/mol 10. Describe in words two societal challenges that may occur if food crops were diverted from a raw material to produce ethanol.
Transcribed Image Text:• Answer each question using full sentences and show all your work for any calculations. Ensure to use the GRASS method (Given, Required, Analysis, Solution, Statement) for questions involving calculations. 9. Calculate the standard enthalpy change of combustion of ethanol from the following standard enthalpies of formation: C2H5OH (1) +3 O2(g) → 2 CO2(g) + 3 H₂O(1) C(graphite) + O2(g) → CO2(g) H2(g) + 1/2O2(g) → H₂O(1) 2 C(graphite) + 3H2(g) + 1/2O2(g) → C₂H5OH (1) AH (CO₂) = -393.5 kJ/mol AH (H₂O) = -285.8 kJ/mol AH (ethanol) = -277.1 kJ/mol 10. Describe in words two societal challenges that may occur if food crops were diverted from a raw material to produce ethanol.
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