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← ScienceWhich consequence results when the impeller speed in a chemical reactor exceeds the optimum rate for mass Biot number?
A)Reduced energy input requirements
B)Increased bubble formation throughout
C)Reactions approaching thermodynamic equilibrium
D)Product degradation by shear forces✓
💡 Explanation
High impeller speeds induce increased energy dissipation through viscous shearing which, through a chain reaction, leads to deformation ultimately leading to product destruction or degradation processes therefore shear stress dominates rather than uniform mixing at elevated speeds.
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