优优班--学霸训练营 > 题目详情
  • 某化学反应\(\rm{2X(g)⇌Y(g)+Z(g)}\)在\(\rm{4}\)种不同条件下进行,\(\rm{Y}\)、\(\rm{Z}\)起始浓度为\(\rm{0}\),反应物\(\rm{X}\)的浓度\(\rm{(mol⋅L^{-1})}\)随反应时间\(\rm{(min)}\)的变化情况如下表:
    实验
    序号

    时间
    浓度
    温度

    \(\rm{0}\)

    \(\rm{10}\)

    \(\rm{20}\)

    \(\rm{30}\)

    \(\rm{40}\)

    \(\rm{50}\)

    \(\rm{60}\)
    \(\rm{1}\) \(\rm{800℃}\) \(\rm{1.0}\) \(\rm{0.80}\) \(\rm{0.67}\) \(\rm{0.57}\) \(\rm{0.50}\) \(\rm{0.50}\) \(\rm{0.50}\)
    \(\rm{2}\) \(\rm{800℃}\) \(\rm{1.0}\) \(\rm{0.60}\) \(\rm{0.50}\) \(\rm{0.50}\) \(\rm{0.50}\) \(\rm{0.50}\) \(\rm{0.50}\)
    \(\rm{3}\) \(\rm{800℃}\) \(\rm{C}\) \(\rm{0.92}\) \(\rm{0.75}\) \(\rm{0.63}\) \(\rm{0.60}\) \(\rm{0.60}\) \(\rm{0.60}\)
    \(\rm{4}\) \(\rm{820℃}\) \(\rm{1.0}\) \(\rm{0.40}\) \(\rm{0.25}\) \(\rm{0.20}\) \(\rm{0.20}\) \(\rm{0.20}\) \(\rm{0.20}\)
    下列说法不正确的是\(\rm{(}\)  \(\rm{)}\)
    【考点】化学平衡建立的过程
    【分析】请登陆后查看
    【解答】请登陆后查看
    难度:较易
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