5. Consider the combustion reaction of octane (C8H18, mol. wt. = 114.23 g/mol, density = 0.703 g/mL).a. Write out the balanced chemical equation for this reaction. All products are in the gas phase. 2 C8H18 + 25 02 ----> CO2 + 18 H2Ob. Calculate the standard free energy (in kJ/mol) released in this reaction.c. Making the approximation that gasoline consists of 100% octane, how much energy would 1.00 gallon of gasoline release? (1 quart = 946 mL, 1 gallon = 4 quarts)

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Answered: 5. Consider the combustion reaction of…

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter16: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 61E: Consider the reaction Fe2O3(s)+3H2(g)2Fe(s)+3H2O(g) a. Use Gf values in Appendix 4 to calculate G...

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5. Consider the combustion reaction of octane (C8H18, mol. wt. = 114.23 g/mol, density = 0.703 g/mL).

a. Write out the balanced chemical equation for this reaction. All products are in the gas phase.

2 C₈H₁₈ + 25 0₂ ----> CO₂ + 18 H₂O

b. Calculate the standard free energy (in kJ/mol) released in this reaction.

c. Making the approximation that gasoline consists of 100% octane, how much energy would 1.00 gallon of gasoline release? (1 quart = 946 mL, 1 gallon = 4 quarts)

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