A.等物质的量的CH4参加反应,反应①②转移的电子数相同 |
B.CH4(g)+4NO2(g)=4NO(g)+CO2(g)+2H2O(l);⊿H=-618KJ/mol |
C.0.2 mol CH4还原NO2至N2,且生成H2O(g)放出的热量为173.4kJ |
D.若用4.48 L(标准状况)CH4还原NO2至N2,整个过程中转移电子1.60mol |
A.SO2(g)+1/202(g)![]() |
B.2SO2(g)+O2(g)![]() |
C.SO2(g)+1/2O2(g)![]() |
D.2SO2(g)+O2(g)![]() |
A.+184.6 kJ · mol-1 | B.-92.3 kJ · mol-1 |
C.-369.2 kJ · mol-1 | D.+92.3 kJ · mol-1 |
A.CH3CH2OH(l)+3O2(g)=2CO2(g)+ 3H2O(l);△H=+1367kJ/mol |
B.2CH3CH2OH(l)+6O2(g)=4CO2(g)+ 6H2O(l);△H=-2734kJ/mol |
C.2CH3CH2OH(l)+6O2(g)=4CO2(g)+ 6H2O(l);△H=-1367kJ/mol |
D.2CH3CH2OH(l)+6O2(g)=4CO2(g)+ 6H2O(l);△H=+2734kJ/mol |
A.Q1 > Q2 | B.Q1 = Q2 | C.2Q1 < Q2 | D.Q1 = 1/2Q2 |
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