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For a reaction, activation energy \( E_{a}=0 \) and the rate
\( \mathrm{P} \) constant at \( 200 \mathrm{~K} \) is \( 1.6 \times 10^{6} \mathrm{~s}^{-1} \). The rate constant at \( 400 \mathrm{~K} \) will be
W
[Given that gas constant \( R=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1} \) ]
(a) \( 3.2 \times 10^{4} \mathrm{~s}^{-1} \)
(b) \( 1.6 \times 10^{6} \mathrm{~s}^{-1} \)
(c) \( 1.6 \times 10^{3} \mathrm{~s}^{-1} \)
(d) \( 3.2 \times 10^{6} \mathrm{~s}^{-1} \)
(Odisha NEET 2019)
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