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← ScienceWhich consequence during platinum catalytic converter light-off phase results due to insufficient temperature?
A)Reduced CO oxidation efficiency✓
B)Increased NOₓ reduction effectiveness
C)Enhanced HC adsorption onto surface
D)Greater SO₂ byproduct formation
💡 Explanation
Insufficient temperature retards the rate of CO oxidation and HC oxidation. The Arrhenius equation dictates the reaction rate depends exponentially on temperature; therefore, CO oxidation is limited, rather than nitrogen oxide reduction which requires already high optimal temperatures.
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