The value of \( K \) for the reaction \[ \mathrm{H}_{2}+\mathrm{I}_{2} \rightleftharpoons 2 \mat...

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The value of \( K \) for the reaction
\[
\mathrm{H}_{2}+\mathrm{I}_{2} \rightleftharpoons 2 \mathrm{HI}
\]
is 49 . The value of \( K \) for the reaction \( 2 \mathrm{HI} \rightleftharpoons \mathrm{H}_{2}+\mathrm{I}_{2} \) will be
(A) 49
(B) \( 1 / 49 \)
(C) 7
(D) \( 1 / 7 \).
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