\(\rm{29.}\)在淀粉\(\rm{-KI}\)溶液中存在下列平衡:\(\rm{I_{2}(aq)+I^{-}(aq)⇌ I\rlap{_{3}}{^{-}}(aq)}\)。测得不同温度下该反应的平衡常数\(\rm{K}\)如表所示:
\(\rm{T/℃}\)
\(\rm{5}\)
\(\rm{15}\)
\(\rm{25}\)
\(\rm{35}\)
\(\rm{50}\)
\(\rm{K}\)
\(\rm{1 100}\)
\(\rm{841}\)
\(\rm{689}\)
\(\rm{533}\)
\(\rm{409}\)
下列说法正确的是 \(\rm{(}\) \(\rm{)}\)
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