[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fbrhmDLO2Ur-Rbb3wzy7DZ45PIw60hhcxBu11hgLSbBc":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-12-01 10:11:12",246543430,[8,9,10,11],"-721.7","721.7","-130.6","-65.3",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},28,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_38222258","第二单元在线作业","已知下列热化学反应:C(s)+O2(g) = CO2(g),\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff0878836710f5795ee52b64a50b81f08.webp\"> =-393.51 kJ·mol–1;Si(s)+CO2(g) = SiC(s)+O2(g),\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F06e47300834616a59ec4292ab5b9005a.webp\">=328.2 kJ·mol–1.则298K时SiC(s)的\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2cc848ac35497d042c48e4e250e2253f.webp\">为( )kJ·mol–1",[21,32,35,44,53,62,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],246543428,[25,26,27,28],"CO2(g) +CaO(s) → CaCO3(s)","1\u002F2H2(g) +1\u002F2I2(s) → HI(g)","H2(g) +Cl2(g) → 2HCl(g)","2H2(g) +O2(g) → 2H2O(g)","下列反应中,反应的标准摩尔焓变等于生成物的标准摩尔生成焓的是( )","v1",0,{"answer":33,"createTime":5,"id":6,"options":34,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":30,"type":31},[],246543432,[39,40,41,42],"140","-140","-20","20","已知:(1) A+B ® C+D ΔrHm(1)=-40.0 kJ·mol–1;(2) 2C+2D ® E ΔrHm(2)=60.0 kJ·mol–1.则反应E ® 2A+2B的ΔrHm(3)等于( )kJ·mol–1",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],246543433,[48,49,50,51],"MgF2","MgO","MgSO4","MgCO3","下列物质中,摩尔熵最大的是( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],246543435,[57,58,59,60],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F06e47300834616a59ec4292ab5b9005a.webp\">>0、\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb293ea5860087dba9c3a62795ecca173.webp\">>0","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F06e47300834616a59ec4292ab5b9005a.webp\"><0、\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb293ea5860087dba9c3a62795ecca173.webp\">>0","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F06e47300834616a59ec4292ab5b9005a.webp\">>0、\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb293ea5860087dba9c3a62795ecca173.webp\"><0","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F06e47300834616a59ec4292ab5b9005a.webp\"><0、\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb293ea5860087dba9c3a62795ecca173.webp\"><0","反应CaCO3(s) ⇌ CaO(s) +CO2(g),在高温时正反应自发进行,其逆反应在298 K时为自发的,则逆反应的\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff0878836710f5795ee52b64a50b81f08.webp\">与\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc66d260351fd56c9801d670cc9863c0d.webp\">是( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],246543438,[66,67,68,69],"吸热反应","放热反应","Ea较大的反应","Ea较小的反应","升高同样温度,一般化学反应速率增大倍数较多的是( )",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],246543439,[75,76,77,78],"K1Θ+K2Θ+K3Θ","K1Θ-K2Θ-K3Θ","K1Θ·K2Θ·K3Θ","K1Θ·K2Θ\u002FK3Θ","某种温度时,下列前三个反应的标准平衡常数分别为K1Θ、K2Θ和K3Θ,则第四个反应的KΘ等于( ).(1) CoO(s)+CO(g) ⇌ Co(s)+CO2(g)(2) CO2(g)+H2(g) ⇌ CO(g)+H2O(1)(3) H2O(1) ⇌ H2O(g)(4) CoO(s)+H2(g) ⇌ Co(s)+H2O(g)",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],246543440,[84,85,86,87],"高温低压","高温高压","低温低压","低温高压","设可逆反应A(g)+2B(g) ⇌ C(g)+D(g),∆rHm>0,A和B获得最高转化率的条件是( )",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],246543442,[93,94,95,96],"增大体系总压","减小总压力","升高温度","降低温度","某温度时,反应:CO(g)+H2O(g) ⇌ CO2(g)+H2(g) (ΔHΘ为负值),已达平衡,为要提高CO转化率,可采取的方法是( )",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],246543443,[102,103,104,105],"提高平衡时产物的浓度","加快正反应速率而减慢逆反应速率","缩短达到平衡的时间","使平衡向右进行","对可逆反应,加入催化剂的目的是( )"]