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← ScienceWhich outcome determines the rate of reaction when the activation energy significantly exceeds RT, Boltzmann constant times temperature?
A)Exponential dependence on temperature changes✓
B)Rate limited by reactant diffusion speed
C)Linear increase due pre-exponential factor
D)Approaching equilibrium independent energy
💡 Explanation
When activation energy is much larger than RT, Arrhenius equation dominates, demonstrating an exponential temperature dependence because only a tiny fraction of collisions have sufficient energy for the reaction to occur. Therefore outcome relies exponential dependence, rather than diffusion limit, linear rise, or independence - require different kinetic regimes.
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