[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fKPvL6IIaqJFCi04_KecSJHUYX2JmqaKo38jv7cKe6UA":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":13,"question":17,"related":18,"source":22,"type":23},[],"2026-05-24 21:09:21",1118932295,[8,9,10,11,12],"碰撞理论认为所有分子间的碰撞都能导致化学反应发生","过渡态理论提出了活化络合物的概念,认为反应要经过一个中间过渡状态","活化能是反应物分子平均能量与活化分子平均能量之差","碰撞理论可以解释温度和浓度对反应速率的影响","过渡态理论认为活化络合物的能量比反应物和产物都低",{"courseId":14,"workId":15,"workName":16},"1000162107","66986657","第四章单元测试","根据碰撞理论和过渡态理论,下列关于化学反应速率的表述哪些是正确的",[19,24,34,44,53,61,70,79,88,93],{"answer":20,"createTime":5,"id":6,"options":21,"question":17,"source":22,"type":23},[],[8,9,10,11,12],"v2",1,{"answer":25,"createTime":5,"id":26,"options":27,"question":32,"source":22,"type":33},[],1118932298,[28,29,30,31],"单位时间内反应物浓度的减少或生成物浓度的增加","单位体积内反应物分子的数目变化","反应过程中体系能量的变化量","反应物转化为产物的百分率","化学反应速率通常如何表示",0,{"answer":35,"createTime":5,"id":36,"options":37,"question":43,"source":22,"type":23},[],1118932300,[38,39,40,41,42],"化学反应速率是指单位时间内反应物浓度的减少或生成物浓度的增加","化学反应速率可以用公式 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F881ee4895b8e59f05eb0d07f06691a99.png\"> 表示,其中 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa200a3fa8b33865c0c3db3cd374865a6.png\"> 表示浓度的变化量","对于反应 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F599c818e4333b9287491326c8f6fdab4.png\">,反应速率可以通过 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe73ff14e0fcd8cc9e07b230e9d0bbef2.png\"> 计算","化学反应速率的单位只能是 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbc78ba1dac4a62f64a1194f60538b4cd.png\">","反应速率与时间的变化量无关","下列关于化学反应速率的表述,哪些是正确的",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":22,"type":33},[],1118932302,[48,49,50,51],"速率不变","速率增加 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7cd087ec867c246a3a56300dbc5e3778.png\"> 倍","速率增加 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8253c09d83be44b34555382187bec302.png\"> 倍","速率增加 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb647a63a9cb487c6c6f11d541a129bd1.png\"> 倍","对于基元反应 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd4cc550d6aa6150d3ec2d513b607740d.png\">,如果A的浓度增加一倍而B的浓度不变,反应速率将如何变化",{"answer":54,"createTime":5,"id":55,"options":56,"question":59,"source":22,"type":60},[],1118932304,[57,58],"对","错","温度升高会加快化学反应速率,是因为更多分子具有了足够的能量成为活化分子;而催化剂的作用是通过改变反应途径来降低活化能,从而加快反应速率.这两个因素对反应速率的影响机制是相同的",3,{"answer":62,"createTime":5,"id":63,"options":64,"question":69,"source":22,"type":33},[],1118932306,[65,66,67,68],"活化络合物的能量低于反应物和产物的能量","活化络合物是反应物转化为产物的中间过渡状态","活化络合物处于反应路径的能量最高点","从反应物到活化络合物需要克服活化能","根据过渡态理论,下列关于活化络合物的描述哪一项是错误的",{"answer":71,"createTime":5,"id":72,"options":73,"question":78,"source":22,"type":33},[],1118932308,[74,75,76,77],"化学反应速率与反应物的浓度无关","反应速率常数 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8e17f826caf77dd390ce844d38617b64.png\"> 只与温度和催化剂有关","温度升高10°C,所有反应速率都增加相同倍数","催化剂会改变反应物和生成物的化学性质","下列哪一项关于化学反应速率的表述是正确的",{"answer":80,"createTime":5,"id":81,"options":82,"question":87,"source":22,"type":33},[],1118932311,[83,84,85,86],"反应物A的平均速率表达式为 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F02c9e0bc47dab4bd6b97e30472d6116e.png\">,不需要加负号","生成物C的平均速率表达式为 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F367744bfa25f5f23af28daee82bc5f17.png\">,需要加负号","不同物质的反应速率数值相等,与化学计量数无关","反应物A和生成物C的反应速率之间存在关系 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F40c5335eb62d58e8caec96abb71151c1.png\">","对于一个化学反应 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F89f4cb5bf1fd642d602bb95e86e92256.png\">,下列说法正确的是",{"answer":89,"createTime":5,"id":90,"options":91,"question":92,"source":22,"type":60},[],1118932313,[57,58],"化学反应速率是用来衡量化学反应进行快慢程度的物理量,可以用反应物或生成物的浓度随时间的变化率来表示",{"answer":94,"createTime":5,"id":95,"options":96,"question":102,"source":22,"type":23},[],1118932316,[97,98,99,100,101],"反应速率可以用反应物或生成物的浓度随时间的变化率来表示,对于反应物通常需要加上负号以保证速率为正值","瞬时速率是当时间间隔趋近于零时平均速率的极限值,可以更精确地描述反应在某一时刻的快慢","在同一个化学反应中,用不同物质表示的反应速率数值相等,与化学计量数无关","对于反应 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd373c795e917552317cff02019bc6bd1.png\">,各物质的反应速率之间存在 \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff5f74d1a0da45968f8bd2444995b5c63.png\"> 的关系","平均速率只能反映某一段时间内反应的平均快慢程度,无法描述反应在某一时刻的具体速率","关于化学反应速率的定义和表示方法,以下哪些说法是正确的"]