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← ScienceWhich risk increases when a mixing vessel's residence time decreases?
A)Elevated concentration of reactant gradients✓
B)Reduced selectivity for side products
C)Higher observed rate constant values
D)Increased reactor temperature stability
💡 Explanation
Decreased residence time causes reactant gradients because insufficient MIXING occurs, reducing homogeneity. Therefore, reactant concentrations will not be uniformly distributed, rather than achieving optimal reaction rates or increased temperature stability that are desired objectives with adequate residence time.
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