Question

As the products cool down to exhaust temperature, a minor part of CO reacts with oxygen to form Co2.

(a) True

(b) False

I have been asked this question in homework.

The origin of the question is Engine Emissions in portion Engine Emissions and their Control of IC Engine

Answer 1

The correct answer is:

(a) True

As the exhaust gases cool down, some of the carbon monoxide (CO) in the exhaust can react with the available oxygen (O₂) to form carbon dioxide (CO₂), especially if there is a catalyst present in the exhaust system, like in a catalytic converter. This process helps reduce the amount of CO in the exhaust.