有人利用炭还原法处理氮氧化物,发生反应\(\rm{C(s)+2NO(g)⇌N_{2}(g)+CO_{2}(g).}\)向某密闭容器中加入一定量的活性炭和\(\rm{NO}\),在\(\rm{T_{1}℃}\)时,不同时间测得各物质的浓度如表所示:
时间\(\rm{(min)}\) 浓度\(\rm{(mol⋅L^{-1})}\) | \(\rm{0}\) | \(\rm{10}\) | \(\rm{20}\) | \(\rm{30}\) | \(\rm{40}\) | \(\rm{50}\) |
\(\rm{NO}\) | \(\rm{1.00}\) | \(\rm{0.68}\) | \(\rm{0.50}\) | \(\rm{0.50}\) | \(\rm{0.60}\) | \(\rm{0.60}\) |
\(\rm{N_{2}}\) | \(\rm{0}\) | \(\rm{0.16}\) | \(\rm{0.25}\) | \(\rm{0.25}\) | \(\rm{0.30}\) | \(\rm{0.30}\) |
\(\rm{CO_{2}}\) | \(\rm{0}\) | \(\rm{0.16}\) | \(\rm{0.25}\) | \(\rm{0.25}\) | \(\rm{0.30}\) | \(\rm{0.30}\) |
\(\rm{①10~20min}\)内,\(\rm{N_{2}}\)的平均反应速率\(\rm{v(N_{2})=}\) ______ .
\(\rm{②30min}\)后,只改变某一条件,反应重新达到平衡,根据上表中的数据判断改变的条件可能是 ______ \(\rm{(}\)填字母序号\(\rm{)}\).
A.通入一定量的\(\rm{NO B.}\)加入一定量的活性炭
C.加入合适的催化剂 \(\rm{D.}\)适当缩小容器的体积.