For a reaction,activation energy $E_a = 0$ and rate constant $K = 3.2 \times 10^6 \ s^{-1}$ at $300 \ K$. What is the value of the rate constant at $300 \ K$?
- A$3.2 \times 10^{-12} \ s^{-1}$
- B$3.2 \times 10^6 \ s^{-1}$
- C$6.4 \times 10^{12} \ s^{-1}$
- D$6.4 \times 10^6 \ s^{-1}$
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