本课配套习题挑战模式1/5
单选题
难度系数:
1.已知葡萄糖的燃烧热是2804kJ/mol,当它氧化生成1g水时放出的热量是
A: 26.0kJ |
B: 51.9kJ |
C: 155.8kJ |
D: 467.3kJ |
一次做对,真牛!
+5奖励规则>
- 提示1:54eD54On54Ot5piv5oyH5ZyoMjXihIPvvIwxMDFLUGHml7bvvIwxbW9s57qv54mp6LSo5a6M5YWo54eD54On55Sf5oiQ56iz5a6a55qE5rCn5YyW54mp5pe25omA5pS+5Ye655qE54Ot6YeP44CC
- 答案:QQ==
54eD54On54Ot5piv5Zyo5LiA5a6a5p2h5Lu25LiL77yMMW1vbOWPr+eHg+eJqeWujOWFqOeHg+eDp+eUn+aIkOeos+WumueahOawp+WMlueJqeaXtuaJgOaUvuWHuueahOeDremHj++8jDFtb2zokaHokITns5blj6/ku6XnlJ/miJA2bW9s55qE5rC077yM5omA5Lul5b2T5a6D5rCn5YyW55Sf5oiQMWfmsLTml7bmlL7lh7rnmoTng63ph4/mmK88aW1nIHdpZHRoPTExNiBoZWlnaHQ9NDEgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC84Qy9BNS9yQkFDRTFUMzYtcXpQcWVyQUFBRUNnTUxLaTQ2MTIucG5nIiA+77yM562U5qGI6YCJQeOAgg==
本课配套习题挑战模式2/5
单选题
难度系数:
2.充分燃烧一定量的丁烷(C4H10)放出热量为Q,经测定完全吸收它生成的CO2需要消耗5mol/LKOH溶液100ml,恰好生成正盐。则燃烧1mol丁烷放出的热量为
A: 4Q |
B: 5Q |
C: 8Q |
D: 16Q |
一次做对,真牛!
+5奖励规则>
- 提示1:5qC55o2u6aKY5bmy5L+h5oGv5Y+v5Lul5YiX5Ye65LqM5rCn5YyW56Kz5LiO5pS+5Ye654Ot6YeP55qE5q+U5L6L5YWz57O744CC
- 提示2:5YaN5qC55o2u5LiB54O354eD54On55qE5Y+N5bqU5bu656uL5LiB54O35LiO5LqM5rCn5YyW56Kz55qE5YWz57O777yM5L6/5Y+v5Lul5rGC5Ye6MW1vbOS4geeDt+WujOWFqOeHg+eDp+aXtuaUvuWHuueahOeDremHj+OAgg==
- 答案:RA==
5LqM5rCn5YyW56Kz5LiOS09I5rq25ray55Sf5oiQ5q2j55uQ5Li6SzxzdWI+Mjwvc3ViPkNPPHN1Yj4zPC9zdWI+44CCMC41bW9sS09I5ZC45pS2MC4yNW1vbENPPHN1Yj4yPC9zdWI+55Sf5oiQ56Kz6YW46ZK+44CCPGJyPjFtb2zkuIHng7fnh4Png6fnlJ/miJA0bW9sQ088c3ViPjI8L3N1Yj7vvIzmlL7ng63kuLoxNlHjgII=
本课配套习题挑战模式3/5
单选题
难度系数:
3.已知:2H2(g)+ O2(g)=2H2O(l)ΔH=-571.6KJ· mol-1
CH4(g)+ 2O2(g)=CO2(g)+2H2O(l) ΔH=-890KJ·mol-1
现有H2与CH4的混合气体112L(标准状况),使其完全燃烧生成CO2和H2O(l),若实验测得反应放热3695KJ,则原混合气体中H2与CH4的物质的量之比是
CH4(g)+ 2O2(g)=CO2(g)+2H2O(l) ΔH=-890KJ·mol-1
现有H2与CH4的混合气体112L(标准状况),使其完全燃烧生成CO2和H2O(l),若实验测得反应放热3695KJ,则原混合气体中H2与CH4的物质的量之比是
A: 1∶1 |
B: 1∶3 |
C: 1∶4 |
D: 2∶3 |
一次做对,真牛!
+5奖励规则>
- 提示1:5YGH6K6+5rCi5rCU5oiW55Sy54O355qE6YeP77yM5qC55o2u5Y+N5bqU5pS+54Ot5Y+v5Lul5YiX5Ye65pa556iL77yM5YiG5Yir5rGC5Ye65Lik6ICF55qE6YeP44CC
- 答案:Qg==
6K6+SDxzdWI+Mjwvc3ViPuOAgUNIPHN1Yj40PC9zdWI+55qE54mp6LSo55qE6YeP5YiG5Yir5Li6PGk+eDwvaT7jgIE8aT55PC9pPm1vbOOAguWImTxpPng8L2k+KyA8aT55PC9pPiA9Ne+8jDU3MS42PGk+eDwvaT4vMiArIDg5MDxpPnkgPC9pPj0gMzY5NSzop6Plvpc8aT54PC9pPj0xLjI1bW9sOyA8aT55PC9pPj0zLjc1bW9s77yM5Lik6ICF5q+U5Li6Me+8mjPvvIzmlYXpgIlC6aG544CC
本课配套习题挑战模式4/5
单选题
难度系数:
4.1 mol CH4气体完全燃烧放出的热量为890 kJ,但当不完全燃烧生成CO和H2O(l)时,放出的热量为607 kJ,如果1 mol CH4与一定量O2燃烧生成CO、CO2、H2O,并放出819.25 kJ的热量,则一定量O2的质量为
A: 40 g |
B: 56 g |
C: 60 g |
D: 无法计算 |
一次做对,真牛!
+5奖励规则>
- 提示1:5YiG5Yir5YGH6K6+5a6M5YWo54eD54On5ZKM5LiN5a6M5YWo54eD54On55qE55Sy54O355qE6YeP77yM5qC55o2u55Sy54O355qE5oC754mp6LSo55qE6YeP5Lul5Y+K5pS+5Ye655qE5oC754Ot6YeP5YiX5Ye65pa556iL6L+b6KGM6K6h566X44CC
- 答案:Qw==
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
本课配套习题挑战模式5/5
单选题
难度系数:
5.乙醇的燃烧热为ΔH1,甲醇的燃烧热为ΔH2,且,若乙醇和甲醇的混合物1 mol完全燃烧,反应热为ΔH3,则乙醇和甲醇的物质的量之比为
A: |
B: |
C: |
D: |
一次做对,真牛!
+5奖励规则>
- 答案:Qg==
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