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← ScienceWhich outcome slows down the urea hydrolysis reaction within bio-concrete when temperature declines?
A)Decreased bacterial urease enzymatic turnover✓
B)Ammonium hydroxide concentrations increase sharply
C)Calcium carbonate equilibrium shifts dissolution
D)Hydronium production increases exponentially
💡 Explanation
A temperature drop reduces microbial activity; enzymatic turnover limits the reaction rate, because Arrhenius's Law relates reaction rates to temperature. This decreases urease activity therefore less urea hydrolyzes, rather than driving carbonate equilibrium or directly affecting hydroxide levels.
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