Energy of interaction of colloidal particles as a function of distance of separation can be identified as (1) vander Waals, (2) double layer, (3) vander Waals and double layer. The correct order of interac tions in the figure corresponding to curves (a), (b) and (c), respectively, is
(a)1, 2, 3
(b)2, 3, 1
(c)3, 1, 2
(d)1.3, 2 The attractive energy due to vander walls interaction is inversely propotional to the sixth power of the interatomic distance . i.e $G_{a}=\frac{-\beta}{r^{6}}$
Answer
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