Equilibrium and Dynamic Osmotic Behaviour of Aqueous Solutions with Varied Concentration at Constant and Variable Volume

Table 2

Comparison of the kinetic characteristics of the osmotic process in aqueous sucrose solutions for the two experimental regimes of constant and variable solution volume. Active area of the semipermeable membrane 𝑆_𝑀=4.65 cm³.

Studied solution (concentration/experimental regime)
	0.1 mol/L		0.2 mol/L		0.5 mol/L
	(Constant/varied)		(Constant/varied)		(Constant/varied)
𝑑𝑃/𝑑𝑡[mbar/s]	1.306	0.044	2.94	0.15	6.22	0.52
𝑑𝑛/𝑑𝑡 [mmol/m^2s]	0.448	67.0	0.996	88.3	2.10	243.6
𝜏[s]	720	3600	570	2520	390	1440
𝑃𝜏/𝑃eq	0.107	0.016	0.194	0.029	0.298	0.050
	0.1 mol/L		0.2 mol/L		0.5 mol/L
(𝑑𝑃/𝑑𝑡)con,max; (𝑑𝑃/𝑑𝑡)var,max	29.68		19.63		11.92
(𝑑𝑛/𝑑𝑡)var,max; (𝑑𝑛/𝑑𝑡)con,max	149.5		88.68		115.7