. . , - =0. (...). ... - =0. , [H+]1 -/. ( ) .=1. , . , ..
H++ 1/2H2
2H+H2
jH=0
.. , ... , ...
Zn ... , , Zn- Zn- .
jZn=j0Zn+RT/n*ln aZn2+ jMe=j0Me+RT/n*ln[Men+] j0- .=298(250). j=j0+0.059/n*lg[Men+]
j0, .. . j=0. , j0<0, - j0>0 : H++ H n=1 jH= j0H+0.059/1*lg[H+], j0H =0 . jH =0.059lg[H+], pH=-lg[H+], jH=-0.059pH. . Cu Zn: E=jCu-jZn=j0Cu-j0Zn+RT/n*ln([Cu2+]-[Zn2+])=E0 E0-RT/n*ln[Zn2+]/[Cu2+] n=2; E0=j0Cu-j0Zn=0.34-(-0.763)=1.103B;E0=1.087, DE=0.016B- 2 .
. - .
1. 1 . , .
2. , .
3. , , .
4. - .
, .
1. 2 (Al-Zn).
2. - (2 -)
, .
3. .
.