18. Calculate the osmotic pressure of the arsenic sulfur sol at T = 293 K and concentration C = 7 kg / m 3. The average radius of the sol particles is r = 10 -8 m; density ρ = 2.8 × 10 3 kg / m 3.
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28.10.2024 1:01:40
Все отлично,продавец быстро реагирует.Еще и помогает)