2. Explain
• 1923 peter Debye and Erich Huckel
• This law says about quantitative approach
for the calculation of mean ionic activity of
stronge electrolyte
• γ± of S.E
• L.L.E = log �+
_
=− �(�+�−) �
3. • D.H.L.L.E
• Relation between ionic strength or mean
activity
• �−
+
≠ I
• i change (1) valancy (2) concentration
• non ideal a< � ← �−
+
→ a> � non idel
• a=c ideal
12. • log�−
+
= -A(�+�−) � C.I
Now we proved that I depend upon
concentration and valency and ionic activity
coefficient change due to change in ionic
strenth
13. Assumptions
(1) 100 % Dissociation
(2) Dilute (0.01m)
(3) Two Forces
(a) Asymetric force
(b) viscous∖ Drag force