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← ScienceWhich outcome reduces NOx formation in pulsed combustion?
A)Decreased peak flame temperatures✓
B)Lowered activation energy barriers
C)Increased local oxygen concentration
D)Higher reactant residence times
💡 Explanation
Decreased peak flame temperatures impede NOx formation because the Arrhenius equation dictates the **exponential temperature dependence** of reaction rates. Therefore lower heat reduces NOx production, rather than higher temperatures, which accelerate undesirable reactions, or conditions affecting diffusion.
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