4.21 calculate and plot a graph of energy attraction spherical polystyrene particles being in an aqueous medium, the distance between the surfaces of the particles, which varies from 2 to 20 nm. The radius of the particles is 50 nm; Gamakepa constant A = 0,5⋅10-20 J.
Tasks of metodichek:
"Laboratory workshop on colloid chemistry" Nekrasov AP Veretenchenko BA, Kharkiv NTU "KPI", 2004
"Characteristic features of disperse systems" Nekrasov, AP, Kharkiv, 1996
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