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Which outcome results when the impeller speed of a stirred chemical reactor exceeds the Reynolds number threshold?

A)Transition to turbulent flow regime
B)Increased laminar flow characteristics prevail
C)Pressure drop increases linearly scaling up
D)Uniform concentration gradients are strictly preserved

💡 Explanation

Exceeding the Reynolds number promotes turbulent flow, because inertial forces dominate viscous forces; therefore, mixing increases substantially rather than ordered velocity profiles appearing, because that reflects only more viscous regimes.

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