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← ScienceWhich risk increases disproportionately with an escalating exothermic reaction rate?
A)Loss of catalyst selectivity
B)Runaway reaction and overpressure✓
C)Decreased product separation efficiency
D)Reduced overall reaction equilibrium yield
💡 Explanation
Runaway reactions occur because the exothermic reaction generates heat faster than it can be dissipated; thermal positive feedback accelerates the reaction rate. Therefore, pressure increases rapidly, rather than the equilibrium shifting or catalyst being directly affected.
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