本课配套习题挑战模式1/5
单选题
难度系数:
1.根据下列信息判断氢气燃烧生成水时的热量变化,其中一定正确的是
A: H2O分解为H2与O2时放出热量 |
B: 生成1mol H2O时吸收热量245kJ |
C: 甲、乙、丙中物质所具有的总能量大小关系为乙>甲>丙 |
D: 氢气和氧气的总能量小于水的能量 |
一次做对,真牛!
+5奖励规则>
- 提示1:5pys6aKY5Y+v5LiN5byV5YWl6ZSu6IO9562J5qaC5b+177yM55u05o6l6L+b6KGM5YiG5p6Q5Y2z5Y+v77yM6L6D5Li6566A5Y2V44CC
- 答案:Qw==
5qC55o2u6IO96YeP5Y+Y5YyW5Y+v55+l77yMMW1vbCBIPHN1Yj4yPC9zdWI+5LiOPGltZyB3aWR0aD0xNiBoZWlnaHQ9NDEgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC81OS9ENC9yQkFDSjFUOVNuS3hIdHBZQUFBQlVxalU1YjgxNTYucG5nIiA+bW9sIE88c3ViPjI8L3N1Yj7mlq3plK7ml7blkLjmlLY2ODVrSuiDvemHj++8jDxicj7ogIznlJ/miJAxbW9sSDxzdWI+Mjwvc3ViPk/mlL7lh7o5MzBrSuiDvemHj++8jOaJgOS7pUg8c3ViPjI8L3N1Yj7nh4Png6fnlJ/miJBIPHN1Yj4yPC9zdWI+T+eahOWPjeW6lOaYr+aUvueDreWPjeW6lO+8jOWImUg8c3ViPjI8L3N1Yj5P55qE5YiG6Kej5piv5ZC454Ot5Y+N5bqU44CC
本课配套习题挑战模式2/5
单选题
难度系数:
2.已知:N2(g)+3H2(g)2NH3(g)△H= -92 kJ/mol,相关数据如下表。一定条件下,在体积为1L的密闭容器中加入1molN2和3molH2充分反应,放出热量Q1kJ,下列说法正确的是
H2(g) | N2(g) | NH3(g) | |
1mol分子中的化学键形成时要释放出的能量/kJ | 436 | 946 | a |
A: 如图可表示合成氨过程中的能量变化 |
B: a的数值为391 |
C: Q1的数值为92 |
D: 相同条件下,反应物若为2molN2和6molH2,放出热量Q2>2Q1 |
一次做对,真牛!
+5奖励规则>
- 提示1:6KGo5qC85Lit5omA57uZ5Ye655qE5pWw5o2u5Li65YyW5a2m6ZSu5b2i5oiQ5pe26KaB6YeK5pS+55qE6IO96YeP77yM5Y+N5bqU55qE6L+b56iL5bqU6K+l5Li677yaSC1I6ZSu5LiOPGltZyB3aWR0aD00OSBoZWlnaHQ9MjAgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC81OS85OS9yQkFDSmxUOVNuYXdvdU5UQUFBQnB1SzJGc2s0OTMucG5nIj7plK7mlq3oo4LvvIzogIw8aW1nIHdpZHRoPTQ4IGhlaWdodD0yMCBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzU5L0Q0L3JCQUNKMVQ5U25iVEdrVU9BQUFCeTBESUxUZzc5Mi5wbmciPumUruW9ouaIkOOAgg==
- 提示2:5rOo5oSP5YiG5a2Q55qE5Liq5pWw5q+U44CC
- 提示3:6K+l5Y+N5bqU5piv5LiA5Liq5Y+v6YCG5Y+N5bqU
- 提示4:ROmhueWImeW6lOivpeiAg+iZkeWMluWtpuW5s+ihoeeahOenu+WKqOOAgg==
- 答案:RA==
Qe+8juWPs+WbvuihqOekuuWQiOaIkOawqOi/h+eoi+S4reWcqOacieOAgeaXoOWCrOWMluWJguaXtueahOWPjeW6lOmAlOW+hOeahOWPmOWMlu+8jOmUmeivr+OAgjxicj5C77yOYeeahOaVsOWAvOaxguino+S4uu+8mjJhICvvvIg5NDYrM8OXNDM277yJPTky77yM6Kej5b6XYT0xMTcz77yM6ZSZ6K+v44CCPGJyPkPvvI7or6Xlj43lupTmmK/lj6/pgIblj43lupTvvIzkuI3og73ov5vooYzliLDlupXvvIzmlYXmlL7lh7rng63ph4/lsI/kuo45Mu+8jOmUmeivr+OAgjxicj5E77yO5aKe5aSn5Y+N5bqU54mp5rWT5bqm5bmz6KGh5ZCR5q2j5Y+N5bqU5pa55ZCR56e75Yqo77yM5pS+5Ye654Ot6YeP5aSn5LqO5Y6f5p2l55qEMuWAjeOAguato+ehruOAgg==
本课配套习题挑战模式3/5
单选题
难度系数:
3.化学反应中的能量变化是由化学反应中旧化学键断裂时吸收的能量与新化学键形成时放出的能量不同引起的。如图为N2(g)和O2(g)反应生成NO(g)过程中的能量变化,下列说法正确的是
A: 1 mol N2(g)和NA个O2(g)反应放出的能量为180 kJ |
B: 1 mol N2(g)和1 mol O2(g)具有总能量小于2 mol NO(g)具有的总能量 |
C: 通常情况下,N2(g)和O2(g)混合能直接生成NO |
D: NO是一种酸性氧化物,能与NaOH溶液反应生成盐和水 |
一次做对,真牛!
+5奖励规则>
- 提示1:5a+55Y+N5bqU6L+H56iL6L+b6KGM5YiG5p6Q77yM5Y+v5Lul55+l6YGT5Y+N5bqU5pyA57uI5Li65ZC45pS254Ot6YeP44CC6K+B5piO55Sf5oiQ54mp55qE6IO96YeP5aSn5LqO5Y+N5bqU54mp44CC
- 提示2:Tk/kuI3og73nrpfkvZzphbjmgKfmsKfljJbnianjgII=
- 答案:Qg==
TjxzdWI+Mjwvc3ViPihnKe+8i088c3ViPjI8L3N1Yj4oZyk9Mk5PKGcp44CAzpRI77yd77yLMTgwIGtKwrdtb2w8c3VwPu+8jTE8L3N1cD7vvIxB6aG577yM5bqU5Li65ZC45pS254Ot6YePMTgwIGtK77ybQ+mhue+8jE48c3ViPjI8L3N1Yj7lkoxPPHN1Yj4yPC9zdWI+5Y+N5bqU6ZyA6auY5rip5oiW5pS+55S177ybROmhue+8jE5P5LiN5piv6YW45oCn5rCn5YyW54mp44CC
本课配套习题挑战模式4/5
单选题
难度系数:
4.下列说法正确的是
A: 在100 ℃、101 kPa条件下,1mol液态水气化时需要吸收40.69 kJ的热量,则H2O(g)H2O(l)的ΔH = +40.69 kJ·mol-1 |
B: 已知CH4 (g)+2O2(g)=CO2(g)+2H2O(l);△H=-802.33kJ/mol,则CH4的燃烧热为802.33 kJ |
C: H2(g)+Br2(g)=2HBr(g)△H=-72kJ·mol-1其它相关数据如下表: 则表中a为230 |
D: 已知S (g)+O2(g)=SO2(s);△H1,S (g)+O2(g)=SO2(g);△H2,则△H2<△H1 |
一次做对,真牛!
+5奖励规则>
- 提示1:5rOo5oSP5pWw5o2u55qE5Y2V5L2N5ZKM5q2j6LSf77yb
- 提示2:Q+mhueiuoeeul+S4reimgeazqOaEj+WIhuWtkOeahOS4quaVsOOAgg==
- 提示3:55Sx5Zu65oCB5Y+Y5Li65rCU5oCB6ZyA6KaB5ZC454Ot44CC
- 答案:Qw==
QeOAgeivpeWPjeW6lOaYr+aUvueDreWPjeW6lO+8jOeEk+WPmOWwj+S6jjDvvIzplJnor6/vvJs8YnI+QuOAgeeHg+eDp+eDreeahOWNleS9jeW6lOS4umtKwrdtb2w8c3VwPi0xPC9zdXA+77yM6ZSZ6K+v77ybPGJyPkPjgIHnhJPlj5jnrYnkuo7lj43lupTnianplK7og73lkozlh4/ljrvnlJ/miJDnianplK7og73lkozvvIzliJnmnIk0MzYrYS0yw5czNjk9LTcy77yMYT0yMzDvvIzmraPnoa7vvJs8YnI+ROOAgeWPjeW6lOeJqeS4gOagt++8jOeUn+aIkOWbuuS9k+aXtuaUvueDreabtOWkmu+8jOWImeeEk+WPmOabtOWwj++8jOmUmeivr+OAgg==
本课配套习题挑战模式5/5
单选题
难度系数:
5.已知一定条件下断裂1 mol下列化学键生成气态原子需要吸收的能量如下:H—H 436kJ;Cl—Cl 243 kJ;H—Cl 431 kJ。下列所得热化学方程式或结论正确的是
A: 2HCl(g)=H2(g)+Cl2(g)的反应热ΔH<0 |
B: H(g)+Cl(g)=HCl(g) ΔH=+431kJ·mol-1 |
C: 相同条件下,H2(g)+Cl2(g)=2HCl(g)在光照和点燃条件下的ΔH相等 |
D: H2(g)+Cl2(g)=2HCl(g) ΔH=-183 kJ |
一次做对,真牛!
+5奖励规则>
- 提示1:5Zyo5q2k57G76aKY55uu5Lit77yM6aaW5YWI6KaB5rOo5oSP5pWw5o2u55qE5Y2V5L2N5ZKM5q2j6LSf77yM5o6l5LiL5p2l5YaN6K6h566X5pWw5o2u55qE5aSn5bCP44CC
- 提示2:5Zyo5Yip55So6ZSu6IO96K6h566X54ST5Y+Y5pe277yM54ST5Y+YPeWPjeW6lOeJqeeahOmUruiDvS3nlJ/miJDniannmoTplK7og73jgII=
- 答案:Qw==
Qemhue+8jM6USO+8ne+8izQzMWtKwrdtb2w8c3VwPu+8jTE8L3N1cD7DlzLvvI00MzZrSsK3bW9sPHN1cD7vvI0xPC9zdXA+77yNMjQzIGtKwrdtb2w8c3VwPu+8jTE8L3N1cD7vvJ3vvIsxODMga0rCt21vbDxzdXA+77yNMTwvc3VwPiZndDsw77yM6ZSZ6K+v77ybPGJyPkLpobnvvIzmlq3oo4JI4oCUQ2zplK7opoHlkLjng63vvIzliJnnlJ/miJBI4oCUQ2zplK7ml7bopoHmlL7ng63vvIzplJnor6/vvJs8YnI+ROmhue+8jOWPjeW6lOeDreWNleS9jeS4uuKAnGtKwrdtb2w8c3VwPu+8jTE8L3N1cD7igJ3vvIzplJnor6/jgII=