[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$ftdxWOiXU7bsb1sjpqWg1F4scMwwz0cVeQnrBhzhJowM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-05-16 01:10:32",11917295,[8,9,10,11],"正反应速率加快","逆反应速率加快","正、逆反应速率都加快","正反应速率减慢、逆反应速率加快",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},10,"77b6dad2d57478c67dcd3158565758f3","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F46a125ddb6b03f94b4190117801d147b.jpg","化学","be484aaeae364078a24822120bb2c064","化学平衡测验","对于一定条件下的放热反应来说,升高温度( )",[21,32,41,50,59,68,71,80,89,97],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],11917290,[25,26,27,28],"①③⑤","②③⑤","②③⑥","②④⑥","有一处于平衡状态的反应:X(s)+3Y(g)↔2Z(g)+Q,为了使平衡向生产Z的方向移动,应选择的条件是( ) ①高温 ②低温 ③高压 ④低压 ⑤催化剂 ⑥分离出Z","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],11917291,[36,37,38,39],"v正(N2)=v逆(NH3)","3v正(N2)=v正(H2)","2v正(H2)=3v逆(NH3)","v正(N2)=3v逆(H2)","可逆反应N2+3H2↔2NH3的正逆反应速率可用各反应物或生成物浓度的变化来表示.下列关系中能说明反应已达到平衡状态的是( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],11917292,[45,46,47,48],"红色变深","黄色变浅","黄色变深","褪为无色","从植物花中可提取一种简写为HIn的有机物,它在水溶液中因存在下列平衡:HIn(溶液,红色)↔H+(溶液,无色)+In-(溶液,黄色)而用作酸碱指示剂.往溶液中加入NaOH,则溶液颜色为( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],11917293,[54,55,56,57],"溶液为紫色","溶液中有灰绿色沉淀","溶液为亮绿色","无法判断","向Cr2(SO4)3的水溶液中,加入NaOH溶液,当pH=4.6时,开始出现Cr(OH)3沉淀,随着pH的升高,沉淀增多,但当pH≥13时,沉淀消失,出现亮绿色的亚铬酸根离子(CrO2-). 其平衡关系如下:Cr3+(紫色) + 3OH- ↔Cr(OH)3(灰绿色)↔CrO22-(亮绿色) + H+ + H2O 向0.05mol\u002FL的Cr2(SO4)3溶液50mL中,加入1.0 mol\u002FL的NaOH溶液50mL,充分反应后,溶液中可观察到的现象是( )",{"answer":60,"createTime":5,"id":61,"options":62,"question":67,"source":30,"type":31},[],11917294,[63,64,65,66],"x=1","B的转化率为20%","平衡时A的浓度为1.50mol\u002FL","达到平衡时,在相同温度下容器内混合气体的压强是反应前的85%","在4L密闭容器中充入6molA气体和5molB气体,在一定条件下发生反应:3A(g)+B(g)↔2C(g)+xD(g),达到平衡时,生成了2molC,经测定D的浓度为0.5mol\u002FL,下列判断正确的是( )",{"answer":69,"createTime":5,"id":6,"options":70,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],11917296,[75,76,77,78],"平衡不移动","平衡向逆反应方向移动","新平衡时各物质的浓度都比原平衡时增大","C的质量分数减小","某温度下,在固定容积的密闭容器中,可逆反应A(g)+3B(g)↔2C(g)达到平衡,测得平衡时A、B、C物质的量之比为n(A)∶n(B)∶n(C)=1∶1∶2,若保持温度不变,以1∶1∶2的物质的量之比再充入A、B和C,下列判读中正确的是( )",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],11917297,[84,85,86,87],"SO2为0.4mol\u002FL,O2为0.2mol\u002FL","SO2为0.25mol\u002FL","SO2、SO3均为0.15mol\u002FL","SO3为0.4mol\u002FL","在一个密闭容器中进行反应:2SO2(g)+O2(g)↔2SO3(g).已知反应过程中某一时刻,SO2、O2、SO3分别是0.2mol\u002FL、0.1mol\u002FL、0.2mol\u002FL,当反应达到平衡时,可能存在的数据是( )",{"answer":90,"createTime":5,"id":91,"options":92,"question":96,"source":30,"type":31},[],11917298,[93,94,95,57],"混合气体密度恒定不变","I2在混合气体中体积分数不变","三种气体的浓度相等","可逆反应H2(g)+I2(g)↔2HI(g)达到平衡时的标志是( )",{"answer":98,"createTime":5,"id":99,"options":100,"question":105,"source":30,"type":31},[],11917299,[101,102,103,104],"在5min内该反应用C的浓度变化表示的反应速率未0.02mol\u002F(L·min)","5min时,容器内D的浓度为0.2mol\u002FL","当容器内压强保持恒定时,该可逆反应达到平衡状态","5min时容器内气体总的物质的量为3mol","在一定温度时,将1molA和2molB放入容积为5L的某密闭容器中发生如下反应:A(s)+2B(g)↔C(g)+2D(g),经5min后,测得容器内B的浓度减少了0.2mol\u002FL.下列说法不正确的是( )"]