瀹為獙鍗?/p>
姘у寲杩樺師鍙嶅簲
涓�锛庡疄楠岀洰鐨?/p>
1.
鍔犳繁鐞嗚В鐢垫瀬鐢靛娍涓庢哀鍖栬繕鍘熷弽搴旂殑鍏崇郴
;
2.
浜嗚В浠嬭川鐨勯吀纰辨�у姘у寲杩樺師鍙嶅簲鏂瑰悜鍜屼骇鐗╃殑褰卞搷
;
3.
浜嗚В鍙嶅簲鐗╂祿搴﹀拰娓╁害瀵规哀鍖栬繕鍘熷弽搴旈�熺巼鐨勫奖鍝?/p>
;
4.
鎺屾彙娴撳害瀵圭數鏋佺數鍔跨殑褰卞搷
;
5.
瀛︿範鐢ㄩ吀搴﹁娴嬪畾鍘熺數姹犵數鍔ㄥ娍鐨勬柟娉?/p>
.
浜岋紟瀹為獙鍘熺悊
鍙傚姞鍙嶅簲鐨勭墿璐ㄩ棿鏈夌數瀛愯浆绉绘垨鍋忕Щ鐨勫寲瀛﹀弽搴旂О涓烘哀鍖栬繕鍘熷弽搴?/p>
.
鐗╄川鐨勮繕鍘熻兘
鍔涚殑澶у皬锛屽彲浠ユ牴鎹浉搴旂數瀵圭數鏋佺數鍔跨殑澶у皬鏉ュ垽鏂�傜數鏋佺數鍔挎剤澶э紝鐢靛涓殑姘у寲鍨?/p>
鐨勬哀鍖栬兘鍔涙剤寮恒�傜數鏋佺數鍔挎剤灏忥紝鐢靛涓殑杩樺師鍨嬬殑杩樺師鑳藉姏鎰堝己銆?/p>
鏍规嵁鐢垫瀬鐢靛娍澶у皬鍙互鍒ゆ柇姘у寲杩樺師鍙嶅簲鐨勬柟鍚?/p>
.
褰?/p>
E
MF
= E
锛堟哀鍖栧墏锛?/p>
- E
锛堣繕鍘熷墏锛?/p>
锛?/p>
0
鏃讹紱
鍙嶅簲姝ｅ悜鑷彂杩涜
褰?/p>
E
MF
= E
锛堟哀鍖栧墏锛?/p>
- E
锛堣繕鍘熷墏锛?/p>
= 0
鏃讹紱
鍙嶅簲澶勪簬骞宠 鐘舵�?/p>
褰?/p>
E
MF
= E
锛堟哀鍖栧墏锛?/p>
- E
锛堣繕鍘熷墏锛?/p>
锛?/p>
0
鏃讹紱
涓嶈兘杩涜鑷彂鍙嶅簲
褰撴哀鍖栧墏鐢靛鍜岃繕鍘熷墏鐢靛鐨勬爣鍑嗙數鏋佺數鍔跨浉宸緝澶ф椂锛?/p>
锛堝鈹?/p>
E
MF
鈹冿紴
0.2V
鏃讹級
,
閫氬父鍙?/p>
浠ョ敤鏍囧噯鐢垫睜鐢靛姩鍔垮垽鏂弽搴旂殑鏂瑰悜
.
鐢辩數鏋佸弽搴旂殑鑳芥柉鐗?/p>
(Nernst)
鏂圭▼寮?/p>
,
鍙互鐪嬪嚭娴撳害瀵圭數鏋佺數鍔跨殑褰卞搷
.298.15K
鏃?/p>
;
0
锛?/p>
0592V c
锛堟哀鍖栧瀷锛?/p>
E = E
?
+
鈥斺�斺�斺�斺�斺�?/p>
銖掆�斺�斺�斺�斺�斺�?/p>
Z
c
锛堣繕鍘熷瀷锛?/p>
婧舵恫鐨?/p>
PH
浼氬奖鍝嶆煇浜涚數瀵圭殑鐢垫瀬鐢靛娍鎴栨哀鍖栬繕鍘熷弽搴旂殑鏂瑰悜銆?/p>
浠嬭川鐨勯吀纰辨�т篃浼氬奖鍝嶆煇浜涙哀鍖栬繕鍘熺殑浜х墿銆?/p>
鍘熺數姹犳槸鍒╃敤姘у寲杩樺師鍙嶅簲灏嗗寲瀛﹁兘杞彉涓虹數鑳界殑瑁呯疆銆?/p>
褰撴湁娌夋穩鎴栭厤鍚堢墿鐢熸垚鏃讹紝浼氬紩璧风數鏋佺數鍔垮拰鐢垫睜鐢靛姩鍔跨殑鏀瑰彉銆?/p>
涓夛紟瀹為獙鍐呭
锛堜竴锛?/p>
.
姣旇緝鐢靛鐨?/p>
E
?
鐩稿澶у皬
瀹為獙姝ラ
鐜拌薄
鍙嶅簲鏂圭▼寮?/p>
瑙ｉ噴涓庣粨璁?/p>
1
锛?/p>
涓婂眰姗欒壊
2I
-
+ 2Fe
3+
=
I
2
+ 2Fe
2+
E
?
锛?/p>
Fe
3
+
/
Fe
2+
锛夛紴
E
?
锛?/p>
I
2
/I
-
锛?/p>
涓嬪眰绱孩鑹?/p>
鏁?/p>
E
?
锛?/p>
0
锛屽弽搴旂敓鎴?/p>
I
2
骞舵憾浜?
CCl
4
2
锛?/p>
涓婂眰妫曢粍鑹?/p>
2Br
-
+ 2Fe
3
+
鈮?/p>
E
?
锛?/p>
Fe
3
+
/
Fe
2+
锛?/p>
锛?/p>
E
?
锛?/p>
Br
-
2
/ Br
--
锛?/p>
涓嬪眰鏃犺壊
鏁?/p>
E
?
锛?/p>
0
锛屽弽搴斾笉鑳藉彂鐢熴�?/p>
缁撹锛?/p>
E
?
锛?/p>
I
2
/I
-
锛夛紲
E
?
锛?/p>
Fe
3
+
/
Fe
2+
锛夛紲
E
?
锛?/p>
Br
-
2
/ Br
--
锛?/p>
E
?
锛?/p>
I
2
/I
-
锛夊拰
E
?
锛?/p>
Br
-
2
/ Br
--
锛夊垎鍒槸鏈�寮虹殑杩樺師鍓傚拰姘у寲鍓傘�?/p>
3
锛?/p>
姗樼孩鑹?/p>
2KI + H
2
O
2
+ H
2
SO
4
=
I
2
+ K
2
SO
4
+ 2H
2
O
H
2
O
2
涓烘哀鍖栧墏
4
锛?/p>
鑲夌孩鑹?/p>
2KMnO
4
+
3H
2
SO
4
+5H
2
O
2
=
K
2
SO
4
+
2MnSO
4
+
5O
2
+82H
2
O
H
2
O
2
涓鸿繕鍘熷墏
缁撹锛?/p>
H
2
O
2
鍦ㄤ笂杩板垎鍒敤浣滄哀鍖栧墏鍜岃繕鍘熷墏銆?/p>