Which of the following statements about carbon dioxide is not true? a. CO 2 , levels are highest when the air-fuel ratio is slightly leaner than stoichiometric. b. The production of CO 2 , is directly related to the amount of fuel consumed; therefore, more fuel efficient engines produce less CO 2 . c. To reduce CO 2 , levels in the exhaust, engineers are working hard to decrease fuel consumption to keep CO 2 low. d. The concern for CO 2 emissions is one of the primary reasons for the delayed use of alternative fuels for automobiles.

Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
Publisher: Cengage Learning
ISBN: 9781133612315

Automotive Technology: A Systems A...

6th Edition
Jack Erjavec + 1 other
Publisher: Cengage Learning
ISBN: 9781133612315

Solutions

Chapter
Section
Chapter 33, Problem 14RQ
Textbook Problem

Which of the following statements about carbon dioxide is not true?a. CO2, levels are highest when the air-fuel ratio is slightly leaner than stoichiometric.b. The production of CO2, is directly related to the amount of fuel consumed; therefore, more fuel efficient engines produce less CO2.c. To reduce CO2, levels in the exhaust, engineers are working hard to decrease fuel consumption to keep CO2 low.d. The concern for CO2 emissions is one of the primary reasons for the delayed use of alternative fuels for automobiles.

Expert Solution
To determine

The statement which is not true about the carbon dioxide.

Explanation of Solution

The emission of carbon dioxide is a result of combustion of fuels and this emission depends upon the conditions which include a condition i.e. if the ratio of air-fuel is not correct and is leaner than the stoichiometric then it results in high emission of carbon dioxide. Thus, option (a) is correct.

The emission of carbon dioxide is related to combustion of fuel which means if the fuel is more consumed then there will be more carbon dioxide. So, there should be more fuel efficient engine which consumes less fuel to reduce carbon dioxide. Thus, the option(b) is correct...

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