The rate constant of a reaction at temperature \( 200 \mathrm{~K} \... VIDEO
The rate constant of a reaction at temperature \( 200 \mathrm{~K} \) is 10 times less than the rate constant at \( 400 \mathrm{~K} \). What is the activation energy \( \left(E_{a}\right) \) of the reaction?
(A) \( 1842.4 \mathrm{R} \)
(B) \( 921.2 \mathrm{R} \)
(C) \( 460.6 \mathrm{R} \)
(D) \( 230.3 R \)
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