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Which risk increases when back pressure unexpectedly reduces turbine catalyst bed airflow?

A)Runaway oxidation reaction occurs
B)Active surface area decreases
C)Space velocity stays constant
D)Equilibrium conversion decreases

💡 Explanation

A runaway oxidation reaction can increase because reduced flow diminishes heat removal via convection; therefore the reaction accelerates beyond control rather than reaching equilibrium conversion where mass transport limits the total turnover.

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