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Calculate the theoretical yield (in kg) of carbon dioxide
Chapter 9, Problem 9.1.85(choose chapter or problem)
Calculate the theoretical yield (in kg) of carbon dioxide emitted by a car in one year, assuming 1.20 104 mi/y, 25 mi/gal, and octane, C8H18, as the fuel, 0.700 g/mL. (1 gal = 3.79 L)
Questions & Answers
QUESTION:
Calculate the theoretical yield (in kg) of carbon dioxide emitted by a car in one year, assuming 1.20 104 mi/y, 25 mi/gal, and octane, C8H18, as the fuel, 0.700 g/mL. (1 gal = 3.79 L)
ANSWER:Step 1 of 4
Combustion of octane
The reaction of a hydrocarbon with oxygen to produce carbon dioxide and water vapor is called a complete combustion reaction. The combustion reaction becomes incomplete when the supply of oxygen is limited, causing the production of carbon monoxide instead of carbon dioxide.
Combustion is a highly exothermic reaction releasing heat which can be used for many purposes. Octane is a hydrocarbon used as fuel in car engines. Octane has a high octane number, and therefore, it burns more efficiently.
Octane undergoes combustion in car engines to form carbon dioxide, water vapor, and heat. The car battery provides the activation energy required for the combustion by producing an electric spark.
The balanced chemical equation for the combustion of octane in a car engine can be given as:
