At approximately what temperature does a vehicle's catalytic converter begin to function effectively?

Question

DentroTest · Accepted Answer

The correct answer is 250 degrees. The catalytic converter is a device in the exhaust system designed to reduce toxic gases through chemical reactions. These reactions require heat to take place.   250 degrees (Correct): This is known as the 'light-off' temperature. From this point on, the converter begins to clean the exhaust gases significantly. Below this temperature (during cold starts or very short trips), the vehicle pollutes much more because the catalyst is not yet effective.   50 degrees (Incorrect): This temperature is too low. At this level, the catalytic converter is practically inactive.    600 degrees (Incorrect): While the converter operates ideally between 400ºC and 700ºC for maximum efficiency, the question asks for the minimumtemperature required to start working effectively, not the optimal high-load temperature.

At approximately what temperature does a vehicle's catalytic converter begin to function effectively?

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