Recall the two-point form of the Arrhenius Equation:
k = rate constant
Ea = activation energy (in J/mol)
R = gas constant (8.314 J/mol • K)
T = temperature (in K)
A = Arrhenius constant or frequency factor
For reactions with the following activation energies, which will have the greatest rate at 298 K? Hint: Assume that the frequency factor, A, in the Arrhenius equation is the same for each of the reactions.
A. Ea = 10 kJ/mol
B. Ea = 15 kJ/mol
C. Ea = 20 kJ/mol
D. Ea = 25 kJ/mol
E. Ea = 30 kJ/mol
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