8. Calculate the thickness of the diffusion ionic layer λ, particles of the dispersed phase at 293 K in aqueous solutions containing 1 10-4 mol/l of one of the following electrolytes: NaCl, CaCl2; MgS04. Assuming that the relative dielectric constant of solutions varies linearly from 87.8 to 69.7 as the temperature increases from 273 to 323 K, plot the dependence of λ on T for the NaCl solution.

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