Chemical KineticshardMCQ SINGLE⭐ Must-Do

According to the classical Arrhenius equation , what precise theoretical condition must be met for tChemical Kinetics Chemistry Question

Question

According to the classical Arrhenius equation $k = A e^{-E_a/RT}$, what precise theoretical condition must be met for the experimental rate constant $k$ to become mathematically equal to the fundamental pre-exponential collision factor $A$?

Answer: B

💡 Solution & Explanation

The fraction $e^{-E_a/RT}$ bounds the probability. As the absolute temperature $T \rightarrow \infty$, the negative exponent fraction entirely collapses to $0$. Since $e^0 = 1$, the rate constant $k$ maximizes and algebraically becomes exactly identically equal to the absolute frequency factor $A$.

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