已知反应\(\rm{2I^{-}+S_{2}O_{8}^{2-}═I_{2}+2SO_{4}^{2-}}\),加入淀粉溶液可观察到溶液变蓝色\(\rm{.}\)反应速率可以用淀粉溶液显蓝色的时间\(\rm{t}\)来度量,\(\rm{t}\)越小,反应速率越大\(\rm{.20℃}\)时得到如下实验数据:
实验编号 | \(\rm{C(I^{-})/mol⋅L}\) | \(\rm{C(S_{2}O_{8}^{2-})/mol⋅L}\) | \(\rm{t/s}\) |
\(\rm{1}\) | \(\rm{0.040}\) | \(\rm{0.040}\) | \(\rm{88.0}\) |
\(\rm{2}\) | \(\rm{0.080}\) | \(\rm{0.040}\) | \(\rm{44.0}\) |
\(\rm{3}\) | \(\rm{0.080}\) | \(\rm{0.080}\) | \(\rm{22.0}\) |
\(\rm{4}\) | \(\rm{0.160}\) | \(\rm{0.020}\) | \(\rm{44.0}\) |
\(\rm{5}\) | \(\rm{0.120}\) | \(\rm{0.040}\) | \(\rm{29.3}\) |
分析上述数据,下列说法正确的是\(\rm{(}\) \(\rm{)}\)