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← ScienceWhich mechanism increases flame propagation speed in premixed methane-air combustion?
A)Increased hydroxyl radical chain branching✓
B)Enhanced radiative heat loss
C)Reduced turbulent kinetic energy
D)Decreased carbon monoxide formation
💡 Explanation
Increased radical pool concentration accelerates the chain reaction because chain branching generates more radicals, therefore flame propagation increases rather than slower propagation with other options inhibiting the radicals.
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