1/5单选题
难度：
1.一定条件下，化学反应2H2+O2===2H2O的能量变化如图所示，则反应的热化学方程式可表示为
| A | H2（g）+1/2O2（g）═H2O（g）△H=（a+b）kJ·mol-1 |
| B | 2H2（g）+O2（g）═2H2O（g）△H=2（b-a）kJ·mol-1 |
| C | H2（g）+1/2O2（g）═H2O（l）△H=（b+c-a）kJ·mol-1 |
| D | 2H2（g）+O2（g）═2H2O（l）△H=2（a-b-c）kJ·mol-1 |
- 提示1：
- 5pys6aKY6ICD5p+l54mp6LSo55qE6IO96YeP5LiO5Y+N5bqU54Ot55qE5YWz57O75Y+K54Ot5YyW5a2m5pa556iL5byP55qE6KGo56S655qE55+l6K+G44CC
正确答案：RA==
MW1vbOeahE4yKGcp5ZKMM0gyKGcp5Lqn55SfMm1vbOeahOa2suaAgU5IM+eahOi/h+eoi+S4reeahOiDvemHj+WPmOWMluaYrzIoYS1iLWMpa0ovbW9s77yM5oiWMC41bW9s55qE5rCu5rCU5LiOMS41bW9s55qE5rCi5rCU5Lqn55SfMW1vbOeahOawlOaAgeawqOawlOaXtueahOiDvemHj+WPmOWMluaYryhh77yNYilrSi9tb2zvvIzlm6DmraTpgInpobnmmK9E44CC
2/5单选题
难度：
2.下列中和反应热化学方程式可用：H+（aq）+OH-（aq）=H2O（l）△H=-57.3kJ·mol-1来表示的是
| A | CH3COOH（aq）+NaOH（aq）=CH3COONa（aq）+H2O（l）；△H=-Q1kJ·mol-1 |
| B |  H2SO4（浓）+NaOH（aq）=1/2Na2SO4（aq）+H2O（l）；△H=-Q2kJ·mol-1 |
| C | HNO3（aq）+NaOH（aq）=NaNO3（aq）+H2O（l）；△H=-Q3kJ·mol-1 |
| D | H2SO4（aq）+Ba（OH）2（aq）=BaSO4（s）+H2O（l）；△H=-Q4kJ·mol-1 |
- 提示1：
- 6Iul5Y+N5bqU55qE56a75a2Q5pa556iL5byP5Y+v5Lul55u05o6l5pS55YaZ5oiQ6aKY5bmy5omA56S655qE5b2i5byP77yM5YiZ6K+B5piO6K+l5Lit5ZKM5Y+N5bqU54Ot5YyW5a2m5pa556iL5byP5Y+v5Lul6KGo56S66K+l5Y+N5bqU44CC
- 提示2：
- 5rWT6YW45LiO5rWT56Kx5rq25LqO5rC05Lya5pS+5Ye65aSn6YeP55qE54Ot77yM5a+55Y+N5bqU55qE6IO96YeP5Y+Y5YyW5pyJ5b2x5ZON44CC
- 提示3：
- 5byx55S16Kej6LSo55qE55S156a75Lya5ZC45pS254Ot6YeP77yM5Lmf5Lya5b2x5ZON5Y+N5bqU55qE6IO96YeP5Y+Y5YyW44CC
正确答案：Qw==
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
3/5单选题
难度：
3.1g炭与适量水蒸气反应生成一氧化碳和氢气，需吸收10.94kJ的热量，相应的热化学方程式为
| A | C+H2O=CO+H2△H=+10.9kJ/mol |
| B | C（s）+H2O（g）=CO（g）+H2（g）△H=+10.94kJ/mol |
| C | C（s）+H2O（g）=CO（g）+H2（g）△H=+131.28kJ/mol |
| D |  H2（g）△H=+65.64kJ/mol |
- 提示1：
- 5Lmm5YaZ54Ot5YyW5a2m5pa556iL5byP5pe25rOo5oSP5Yeg54K577ya5Y+N5bqU5p2h5Lu244CB54mp6LSo54q25oCB44CB56ym5Y+35Y2V5L2N44CB5a6I5oGS5YWz57O744CB5LiO5pmu6YCa5YyW5a2m5byP55qE5Yy65Yir77yM5Lul5Y+K5YyW5a2m6K6h6YeP5pWw55qE55u45YWz6Zeu6aKY44CC
正确答案：Qw==
55SxMWfnorPkuI7pgILph4/msLTokrjmsJTlj43lupTnlJ/miJBDT+WSjEg8c3ViPjI8L3N1Yj7vvIzpnIDlkLjmlLYxMC45NGtK54Ot6YeP77yM5YiZMW1vbOeis+S4juawtOiSuOawlOWPjeW6lO+8jOWQuOaUtjEwLjk0S0rDlzEyPTEzMS4yOGtK77yMPGJyPuWImeatpOWPjeW6lOeahOeDreWMluWtpuaWueeoi+W8j+S4ukPvvIhz77yJK0g8c3ViPjI8L3N1Yj5P77yIZ++8ieKVkENP77yIZ++8iStIPHN1Yj4yPC9zdWI+77yIZ++8ieKWs0g9KzEzMS4yOGtKwrdtb2w8c3VwPi0xPC9zdXA+77yM
4/5单选题
难度：
4.25℃/101kPa时，1g甲醇完全燃烧生成CO2和液态H2O，同时放出22.68kJ热量，下列表示该反应的热化学方程式正确的是
| A | CH4O（l）+ O2（g）=CO2（g）+2H2O（g）△H=-725.8kJ·mol-1 |
| B | 2CH4O（l）+3O2（g）=2CO2（g）+2H2O（l）△H=+1451.6kJ·mol-1 |
| C | 2CH4O（l）+3O2（g）=2CO2（g）+4H2O（l）△H=-22.68kJ·mol-1 |
| D | CH4O（l）+O2（g）=CO2（g）+2H2O（l）△H=-725.8kJ·mol-1 |
- 提示1：
- 5Lmm5YaZ54Ot5YyW5a2m5pa556iL5byP5pe25rOo5oSP5Yeg54K577ya5Y+N5bqU5p2h5Lu244CB54mp6LSo54q25oCB44CB56ym5Y+35Y2V5L2N44CB5a6I5oGS5YWz57O744CB5LiO5pmu6YCa5YyW5a2m5byP55qE5Yy65Yir77yM5Lul5Y+K5YyW5a2m6K6h6YeP5pWw55qE55u45YWz6Zeu6aKY44CC
正确答案：RA==
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
5/5单选题
难度：
5.2008年北京奥运会火炬采用了只含碳、氢两种元素的丙烷做燃料，燃烧后只生成CO2和H2O，对环境无污染，体现了绿色奥运的精神．已知1g丙烷完成燃烧生成CO2气体和液态水，放出50.405kJ热量，则下列热化学方程式正确的是
| A | C3H8（g）+5O2（g）═3CO2（g）+4H2O（l）△H=-50.405kJ/mol |
| B | C3H8（g）+5O2（g）═3CO2（g）+4H2O（l）△H=+2217.82kJ/mol |
| C | C3H8（g）+5O2（g）═3CO2（g）+4H2O（l）△H=+50.405kJ/mol |
| D | C3H8（g）+5O2（g）═3CO2（g）+4H2O（l）△H=-2217.82kJ/mol |
- 提示1：
- 5Y+N5bqU5Li65pS+54Ot5Y+N5bqU77yM4pazSO+8nDDvvIzmoLnmja4wLjFtb2zkuJnng7flrozlhajnh4Png6fmlL7lh7rnmoTng63ph4/orqHnrpcxbW9s5LiZ54O35a6M5YWo54eD54On5pS+5Ye655qE54Ot6YeP77yM6L+b6ICM5Lmm5YaZ54Ot5YyW5a2m5pa556iL5byP77yO
正确答案：RA==
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