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The activation energy for the following first-order reaction is 318 kJ/mol. N2O5(g)-->2NO2(g)+(1/2) O2(g). The value of the rate constant (k) is 6.65x10^-5 s^-1 at 84 degrees C. What is the value of k at 49 degrees C. (R=8.314 J/mol K)?
A. 5.88E-10 s^-1
B. 2.16E-2 s^-1
C. 5.31E-5 s^-1
D. 2.98E-5 s^-1
E. 6.65E-5 s^-1

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