A.2C8H18 + 25O2 = 16CO2 + 18H2O△H =-11036 kJ·mol-1 |
B.2C8H18(l) + 25O2(g) = 16CO2(g) + 18H2O(l)△H =-11036 kJ·mol-1 |
C.2C8H18(l) + 25O2(g) = 16CO2(g) + 18H2O(g)△H =-11036 kJ·mol-1 |
D.2C8H18(l) + 25O2(g) = 16CO2(g))+18H2O(l)△H =-5518kJ·mol-1 |
A.负极的电极反应式为: CO+O2—―2e-=CO2 |
B.工作时电极b作正极,O2-由电极a流向电极b |
C.工作时电子由电极a通过传感器流向电极b |
D.传感器中通过的电流越大,尾气中CO的含量越高 |
时间/min | 5 | 10 | 15 | 20 | 25 | 30 |
c(NH3)/( mol ·/L-1) | 0.08 | 0.14 | 0.18 | 0.20 | 0.20 | 0.20 |
| A | B | C | D |
甲 | a mol | a mol | 0 | 0 |
乙 | 2a mol | a mol | 0 | 0 |
丙 | a mol | a mol | a mol | a mol |
丁 | a mol | 0 | a mol | a mol |
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