For the autocatalytic reaction rate expression – rA = k * CA * CB shown below,__________________?
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Answer: D. Both B & C
Explanation
Autocatalytic rate expressions produce a maximum reaction rate when reactant and product concentrations are balanced. Plotting rate versus concentration for such autocatalytic systems yields a non linear hyperbolic curve. Both mathematical characteristics correctly describe the kinetic behavior of autocatalytic reaction rate expressions. Autocatalytic reactions are processes where a product acts as a catalyst for the ongoing chemical transformation. Rate expressions containing both reactant and product concentration terms exhibit distinctive maximum rate peaks. Kinetic plots for autocatalytic systems deviate significantly from standard linear zero or first order behaviors.
Fermentation processes and certain polymerization reactions frequently exhibit autocatalytic kinetic rate profiles. Reactor design for autocatalytic systems often utilizes autocatalytic recycle configurations to optimize vessel volumes. Understanding reaction rate maxima prevents thermal runaways in exothermic autocatalytic chemical manufacturing. Option A incorrectly claims a linear relationship with a constant slope, ignoring the non linear product term. Option B correctly identifies the hyperbola plot but omits the crucial detail about the maximum reaction rate. Option C correctly notes the maximum rate condition but is incomplete without recognizing the curve shape in B.
- Subject
- Engineering
- Category
- Chemical Engineering
- Topic
- —
- Difficulty
- medium
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