本题目来源于试卷: What Drives Chemical Reactions D.3 Energy From Fuels,类别为 IB化学
[单选题]
For an electrochemical fuel cell in aco l(y 1dybou9;)k;yx eidxgpmuf2 y9k;)ic conditions using methanol as the fuel source, whi2k g;pyu) f9mxch of the following correctly describes the balanced reactions occurring at the anode and at the cathode?
A. Anode:$CH_3OH$(g)+$H_2O$(l)→2$CO_2$(g)+6$H^{+}$(aq)+6$e^-$;Cathode:3$O_2$(g)+12H$^+$(aq)+6e$^-$→3$H_2O$(l)
B. Anode:$\frac{3}{2}$$O_2$(g)+6H$^+$(aq)+6e$^-$→3$H_2O$(l);Cathode:$CH_3OH$(g)+$H_2O$(l)→2$CO_2$(g)+6$H^{+}$(aq)+6$e^-$
C. Anode:$CH_3OH$(g)+$H_2O$(l)→2$CO_2$(g)+6$H^{+}$(aq)+6$e^-$;Cathode:$\frac{3}{2}$$O_2$(g)+6H$^+$(aq)+6e$^-$→3$H_2O$(l)
D. Anode:$CH_3OH$(g)+6$OH^-$(aq)→2$CO_2$(g)+5$H_2O$(l)+6e$^-$;Cathode:$\frac{3}{2}$$O_2$(g)+3$H_2O(l)$+6e$^-$→6OH$^-$(aq)
参考答案: C
本题详细解析:

|