50. Решение задачи по химии №9

13. What degree of supersaturation must be created in the solution to obtain a barium sulfate sol consisting of particles of 10-8 m in size? The density of barium sulfate is 4500 kg/m3, the surface tension, and the interfacial surface tension (BaSO4 - H2O) at 298 K is 150 mJ/m2.

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