反应MnO[img=11x26]1803dd597219875.png[/img]+5Fe[img=17x22]1803dd597aded1f.png[/img]+8H[img=11x21]1803dd5982f2487.png[/img][img=35x13]1803dd598a8157e.png[/img]Mn[img=17x22]1803dd59939f153.png[/img]+5Fe[img=17x22]1803dd599ce0266.png[/img]+4H[img=7x22]1803dd59a5ef6a0.png[/img]O构成电池，在标准状态下表示符号为（ ）
A: （－）Pt︱Fe[img=17x22]1803dd59ae9d055.png[/img](c[img=11x21]1803dd59b70a07f.png[/img]), Fe[img=17x22]1803dd59bf2a421.png[/img](c[img=11x21]1803dd59c82f605.png[/img])‖MnO[img=11x26]1803dd59d0e7c34.png[/img](c[img=11x21]1803dd59d9cdd93.png[/img])，Mn[img=17x22]1803dd59e29bd7d.png[/img](c[img=11x21]1803dd59eb8a666.png[/img])︱Pt（+）
B: （－）Pt︱MnO[img=11x26]1803dd59d0e7c34.png[/img](c[img=11x21]1803dd59d9cdd93.png[/img])，Mn[img=17x22]1803dd59e29bd7d.png[/img](c[img=11x21]1803dd59eb8a666.png[/img])‖Fe[img=17x22]1803dd59ae9d055.png[/img](c[img=11x21]1803dd59b70a07f.png[/img]), Fe[img=17x22]1803dd59bf2a421.png[/img](c[img=11x21]1803dd59c82f605.png[/img])︱Pt（+）
C: （－）Pt︱Fe[img=17x22]1803dd59ae9d055.png[/img](c[img=11x21]1803dd59b70a07f.png[/img]), Fe[img=17x22]1803dd59bf2a421.png[/img](c[img=11x21]1803dd59c82f605.png[/img])‖Mn[img=17x22]1803dd59e29bd7d.png[/img](c[img=11x21]1803dd59eb8a666.png[/img])，MnO[img=11x26]1803dd59d0e7c34.png[/img](c[img=11x21]1803dd59d9cdd93.png[/img])︱Mn（+）
D: （－）Pt︱MnO[img=11x26]1803dd59d0e7c34.png[/img](c[img=11x21]1803dd59d9cdd93.png[/img])，Mn[img=17x22]1803dd59e29bd7d.png[/img](c[img=11x21]1803dd59eb8a666.png[/img])‖Fe[img=17x22]1803dd59ae9d055.png[/img](c[img=11x21]1803dd59b70a07f.png[/img]), Fe[img=17x22]1803dd59bf2a421.png[/img](c[img=11x21]1803dd59c82f605.png[/img])︱Fe（+）
A: （－）Pt︱Fe[img=17x22]1803dd59ae9d055.png[/img](c[img=11x21]1803dd59b70a07f.png[/img]), Fe[img=17x22]1803dd59bf2a421.png[/img](c[img=11x21]1803dd59c82f605.png[/img])‖MnO[img=11x26]1803dd59d0e7c34.png[/img](c[img=11x21]1803dd59d9cdd93.png[/img])，Mn[img=17x22]1803dd59e29bd7d.png[/img](c[img=11x21]1803dd59eb8a666.png[/img])︱Pt（+）
B: （－）Pt︱MnO[img=11x26]1803dd59d0e7c34.png[/img](c[img=11x21]1803dd59d9cdd93.png[/img])，Mn[img=17x22]1803dd59e29bd7d.png[/img](c[img=11x21]1803dd59eb8a666.png[/img])‖Fe[img=17x22]1803dd59ae9d055.png[/img](c[img=11x21]1803dd59b70a07f.png[/img]), Fe[img=17x22]1803dd59bf2a421.png[/img](c[img=11x21]1803dd59c82f605.png[/img])︱Pt（+）
C: （－）Pt︱Fe[img=17x22]1803dd59ae9d055.png[/img](c[img=11x21]1803dd59b70a07f.png[/img]), Fe[img=17x22]1803dd59bf2a421.png[/img](c[img=11x21]1803dd59c82f605.png[/img])‖Mn[img=17x22]1803dd59e29bd7d.png[/img](c[img=11x21]1803dd59eb8a666.png[/img])，MnO[img=11x26]1803dd59d0e7c34.png[/img](c[img=11x21]1803dd59d9cdd93.png[/img])︱Mn（+）
D: （－）Pt︱MnO[img=11x26]1803dd59d0e7c34.png[/img](c[img=11x21]1803dd59d9cdd93.png[/img])，Mn[img=17x22]1803dd59e29bd7d.png[/img](c[img=11x21]1803dd59eb8a666.png[/img])‖Fe[img=17x22]1803dd59ae9d055.png[/img](c[img=11x21]1803dd59b70a07f.png[/img]), Fe[img=17x22]1803dd59bf2a421.png[/img](c[img=11x21]1803dd59c82f605.png[/img])︱Fe（+）
举一反三
- 已知298.15K时，φ[img=11x21]17de88171672677.png[/img](Fe[img=17x22]17de88172301ad7.png[/img]/ Fe[img=17x22]17de88172ea9401.png[/img])=0.771V，φ[img=11x21]17de88173a7fa80.png[/img](Ag[img=11x21]17de881747233ad.png[/img]/ Ag)=0.7996V，则Ag+Fe[img=17x22]17de8817537b96e.png[/img]=Ag[img=11x21]17de88175f41678.png[/img]+Fe[img=17x22]17de88176b0e682.png[/img]的标准平衡常数为( )。 A: 3.042 B: 0.3288 C: 1.623 D: 0.616
- 已知298.15K时，φ[img=11x21]1803dd586900cf8.png[/img](Fe[img=17x22]1803dd5871b854a.png[/img]/ Fe[img=17x22]1803dd587a8454c.png[/img])=0.771V，φ[img=11x21]1803dd586900cf8.png[/img](Ag[img=11x21]1803dd588b7a344.png[/img]/ Ag)=0.7996V，则Ag+Fe[img=17x22]1803dd5894b98b4.png[/img]=Ag[img=11x21]1803dd589d7644c.png[/img]+Fe[img=17x22]1803dd58a69b9f6.png[/img]的标准平衡常数为( )。 A: 3.042 B: 0.3288 C: 1.623 D: 3.623
- 在电极反应中，其他条件不变，离子的浓度减小一半，φ[img=11x21]1803dd564146d28.png[/img]值不变的是( )。 A: Cu[img=17x22]1803dd5649f13af.png[/img] + 2 e[img=11x21]1803dd565317d13.png[/img] ＝ Cu B: I[img=7x22]1803dd565cb1434.png[/img] + 2 e[img=11x21]1803dd56658b4c0.png[/img] ＝ 2I[img=11x21]1803dd566e62490.png[/img] C: 2H[img=11x21]1803dd56764d35d.png[/img] + 2 e[img=11x21]1803dd567e9d87e.png[/img] ＝ H[img=7x22]1803dd5686ffa22.png[/img] D: Fe[img=17x22]1803dd568e4cd48.png[/img] + e[img=11x21]1803dd5697018a2.png[/img] ＝ Fe[img=17x22]1803dd569fcffe9.png[/img]
- 下列已经配平的反应是（ ）。 A: Mn[img=17x22]1803dd59613bf64.png[/img]+5BiO[img=7x22]1803dd5969ee1c2.png[/img]+14H[img=11x21]1803dd5971e19d3.png[/img]→MnO[img=7x22]1803dd597ad1d0a.png[/img][img=11x21]1803dd59831425e.png[/img]+5Bi[img=17x22]1803dd598b7cbce.png[/img]+7H[img=7x22]1803dd5994d305b.png[/img]O B: 2CrO[img=7x22]1803dd599d4a3b7.png[/img][img=11x21]1803dd59a6535ca.png[/img]+3H[img=7x22]1803dd59adf3c07.png[/img]O[img=7x22]1803dd59b6a9b45.png[/img]＋2OH[img=11x21]1803dd59beb8a66.png[/img]→2CrO[img=17x27]1803dd59c72713c.png[/img]+ 4H[img=7x22]1803dd59d0edd85.png[/img]O C: 8Al+3NO[img=11x26]1803dd59d9643c3.png[/img]+5OH[img=11x21]1803dd59e1850c8.png[/img]→3Al(OH)[img=11x26]1803dd59ea6acad.png[/img]+3NH[img=7x22]1803dd59f2b5caf.png[/img] D: S[img=17x22]1803dd59faee830.png[/img]+ClO[img=11x26]1803dd5a03bba6b.png[/img]→Cl[img=11x21]1803dd5a0db0f34.png[/img]+S
- 对电极反应反应Fe[img=17x22]1803dd593688451.png[/img]+e[img=11x21]1803dd593f0ee2e.png[/img]=Fe[img=17x22]1803dd5946fb818.png[/img]中有关离子浓度都减小一半时，φ (Fe[img=17x22]1803dd594f9ef1d.png[/img]/Fe[img=17x22]1803dd5958240ac.png[/img])的值不变。( )