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Which outcome occurs when an uninhibited exothermic reaction vessel exceeds safe operating temperature?

A)Accelerated reaction rate and thermal runaway
B)Decreased activation energy, stable state
C)Equilibrium shift, lower product yield
D)Increased catalyst selectivity, reduced byproduct

💡 Explanation

Higher temperature increases the rate constant per the Arrhenius equation, because increased molecular kinetic energy leads to more successful collisions. The outcome is auto-acceleration via positive feedback i.e. thermal runaway therefore runaway is more likely, rather than equilibrium changes assuming excess reactants.

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