[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fPVj33DVYPzVt97f4K7jvqFSg_2exGItQxRBtseVLLVU":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":13,"question":20,"related":21,"source":33,"type":34},[],"2024-03-06 21:36:53",109392801,[8,9,10,11,12],"Inc对时间t作图为一条直线","半衰期与反应物起始浓度成正比","速率常数(k)的单位是(时间) -1","同一反应,当反应物消耗的百分数相同时所需的时间一样","反应物反应掉一半所需要的时间称为半衰期",{"count":14,"courseId":15,"courseImg":16,"courseName":17,"workId":18,"workName":19},55,"873db12bbe04d205f9de72b49f361e53","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbdc0f4faa783146cd6f1c71cdc06de57.JPG","基础化学","work_31263892","第8章 化学反应速率-副本","描述一级反应特征不正确的是",[22,35,44,54,65,76,86,96,107,117],{"answer":23,"createTime":24,"id":25,"options":26,"question":32,"source":33,"type":34},[],"2024-01-07 00:12:07",109392759,[27,28,29,30,31],"2","0","1","4","3","当反应物A的浓度分别为0.10mol·L-1和0.05mol·L-1时,测得反应2A=B前后两次反应速率的比值为2:1.则该反应的反应级数是","v1",0,{"answer":36,"createTime":24,"id":37,"options":38,"question":43,"source":33,"type":34},[],109392769,[39,40,41,42],"dc(H2)\u002F3dt","2dc(NH3)\u002Fdt","dc(NH3)\u002Fdt","dc(NH3)\u002F2dt","合成氨反应3H2(g)+N2(g)→2NH3(g)的反应速率可以表示为-dc(N2)\u002Fdt,下列表示与其相当的是",{"answer":45,"createTime":46,"id":47,"options":48,"question":53,"source":33,"type":34},[],"2024-03-06 21:36:41",109392777,[49,50,51,52],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7dd707656e9480bf9d4a01d45f839bd9.png\">","需由实验确定","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fd746402faf697f33ed79e9a5925eaaf3.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fed5ed18f96292ad005c40065b03c1039.png\">","已知反应A+2B→C,其速率方程为",{"answer":55,"createTime":56,"id":57,"options":58,"question":64,"source":33,"type":34},[],"2024-03-06 21:36:49",109392779,[59,60,61,62,63],"0.346min-1","13.9min-1","1.39min-1","0.0346min-1","28.9min-1","某一级反应的半衰期是20.0min,则该反应的速率常数是",{"answer":66,"createTime":67,"id":68,"options":69,"question":75,"source":33,"type":34},[],"2024-03-06 21:36:47",109392782,[70,71,72,73,74],"必定等于或大于100kJ·mol-1","只能大于100kJ·mol-1","可以小于或大于100kJ·mol-1","只能小于100kJ·mol-1","必定等于或小于100kJ·mol-1","某反应的反应热ΔH为-100kJ·mol-1,则其活化能",{"answer":77,"createTime":46,"id":78,"options":79,"question":85,"source":33,"type":34},[],109392786,[80,81,82,83,84],"化学反应式配平即可求得反应级数","二级反应即是双分子反应","反应级数随温度升高而增大","反应级数只能由实验确定","反应级数必须是正整数","关于反应级数的说法中正确的是",{"answer":87,"createTime":24,"id":88,"options":89,"question":95,"source":33,"type":34},[],109392792,[90,91,92,93,94],"减小体系的压力","在反应体系中加入NO2","在反应体系中加入NO","降低反应温度","以上操作都不能改变","已知反应2NO+O2=2NO2为三级反应,下列操作会使反应速率常数改变的是",{"answer":97,"createTime":98,"id":99,"options":100,"question":106,"source":33,"type":34},[],"2024-03-06 21:36:39",109392796,[101,102,103,104,105],"都与k和c0有关","都与k有关","都与c0有关","不一定与k和c0有关","都是随时间变化的","一级反应、二级反应和零级反应的半衰期",{"answer":108,"createTime":5,"id":109,"options":110,"question":116,"source":33,"type":34},[],109392799,[111,112,113,114,115],"30min-1","0.230min-1","0.0230min-1","20.8min-1","43.3min-1","某一级反应的半衰期t1\u002F2是30min,则其反应速率常数k为",{"answer":118,"createTime":5,"id":6,"options":119,"question":20,"source":33,"type":34},[],[8,9,10,11,12]]