Answered: Discuss ethanol use in fuels, including…

Discuss ethanol use in fuels, including the pros and cons of different percentage formulations. Discuss fuel adulteration.

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter4: Stoichiometry

Section: Chapter Questions

Problem 4.61PAE: 4.61 What is actually measured by the octane ratings of different grades of gasoline?

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They are all part of one question. Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The heat of combustion of ethanol is 326.7 kcal/mol.The heat of combustion of 2-methylhexane, C7H16, is 1.150×103 kcal/mol. How much energy is released during the complete combustion of 495 grams of 2-methylhexane ? ______kcalAssuming the same efficiency, would 495 grams of ethanol provide more, less, or the same amount of energy as 495 grams of 2-methylhexane? Hydrocarbons, compounds containing only carbon and hydrogen, are important in fuels.The heat of combustion of cyclohexane, C6H12, is 936.8 kcal/mol.Write a balanced equation for the complete combustion of cyclohexane. + + How much energy is released during the complete combustion of 364 grams of cyclohexane ? _______kcal Combustion…
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[Review Topics] [References] Use the References to access important values if needed for this question. Ethanol, C2H,O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The heat of combustion of ethanol is 326.7 kcal/mol. The heat of combustion of hexane, C,H14, is 995.0 kcal/mol. How much energy is released during the complete combustion of 479 grams of hexane ? kcal Assuming the same efficiency, would 479 grams of ethanol provide more, less, or the same amount of energy as 479 grams of hexane? Submit Answer Retry Entire Group 9 more group attempts remaining