Question

The catalyst is consumed in the reaction and so functions indefinitely unless degraded by heat, age, contaminants or other factors.

(a) True

(b) False

The question was asked in semester exam.

Query is from Catalytic Converters topic in section Engine Emissions and their Control of IC Engine

Answer 1

The correct answer is:

(b) False

The catalyst is not consumed in the reaction; it facilitates the chemical reactions by providing an alternative pathway for the reactions to occur, which lowers the activation energy. As a result, the catalyst functions indefinitely under normal conditions. However, it can degrade due to factors like high heat, aging, and contamination, which can reduce its efficiency over time.