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A Particular First-Order Reaction Has a Rate Constant of 1 10210 ^ { 2 }

Question 68

Multiple Choice

A particular first-order reaction has a rate constant of 1.35 × 10210 ^ { 2 } s−1s ^ { - 1 } at 25.0 °C.What is the magnitude of k at 75.0 °C if Ea=82.5 kJ mol−1? E_{\mathrm{a}}=82.5 \mathrm{~kJ} \mathrm{~mol}^{-1} ?


A) 1.61 × 104 s-1
B) 646 s-1
C) 1.11 × 10117 s-1
D) 6.19 × 10-5 s-1
E) 1.36 × 102 s-1

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