向\(\rm{2L}\)的密闭容器中充入\(\rm{7.6mol}\) \(\rm{NO}\)和\(\rm{3.8mol}\) \(\rm{O_{2}}\)，发生如下反应：
\(\rm{①2NO(g)+O_{2}}\) \(\rm{(g)⇌2NO_{2}(g)}\)
\(\rm{②2NO_{2}(g)⇌N_{2}O_{4}(g)}\)
测得\(\rm{NO_{2}}\)和\(\rm{N_{2}O_{4}}\)的浓度变化如图所示，\(\rm{0～10min}\)维持容器温度为\(\rm{T_{1}℃}\)，\(\rm{10min}\)后升高并维持容器的温度为\(\rm{T_{2}℃.}\)下列说法正确的是\(\rm{(}\) \(\rm{)}\)