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← ScienceWhich outcome increases when a packed-bed chemical reactor temperature approaches adiabatic runaway?
A)Radical chain branching initiation rate✓
B)Catalyst surface area optimization
C)Residence time distribution uniformity
D)Intra-particle diffusion limitation
💡 Explanation
Runaway reactions increase radical chain branching initiation rate because the Arrhenius equation shows exponential rate increase with temperature; therefore the highly exothermic reactions accelerate rapidly rather than slowing due to diffusion since the increased rate dominates first.
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