Question

More than 90 to 95% of carbon particles originally generated within an engine are thus converted to CO2 and never comes out as carbon particles.

(a) True

(b) False

The question was posed to me in homework.

This question is from Hydrocarbon Emissions in division Engine Emissions and their Control of IC Engine

Answer 1

The correct answer is:

(a) True

More than 90 to 95% of the carbon particles originally generated within an engine, such as soot particles, are converted to CO2 due to the combustion process, and they do not exit as particulate matter in the exhaust. This conversion happens through oxidation reactions, especially in modern engines with advanced aftertreatment systems like catalytic converters or particulate filters, which effectively reduce the emission of solid carbon particles.