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← ScienceWhich risk increases when thermal decomposition approaches its activation energy?
A)Runaway chain reaction occurrence✓
B)Decreased reactant surface area
C)Catalyst poisoning accelerates
D)Equilibrium constant shifts unfavorably
💡 Explanation
The risk of a runaway chain reaction increases because the reaction's rate drastically accelerates upon reaching the activation energy barrier due to the increased concentrations of intermediates; therefore, temperature spirals leading to explosion rather than gradual decomposition.
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