The enzyme urease catalyzes the reaction of urea, (NH2CONH2), with water to produce carbon dioxide and ammonia. In water, without the enzyme, the reaction proceeds with a first-order rate constant of 4.15 10-5-1 at 100 oC. In the presence of the enzyme in water, the reaction proceeds with a rate constant of 3.4 104-1 at 21 oC.
If enzymatic reactions could actually be carried out at high temperatures, what would you expect for the rate of the catalyzed reaction at 100 oC as compared to that at 21 oC?
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