Differential osmotic pressure factor

The differential osmotic pressure factor 12 = Qti not seem to have been used in other connections. This factor is of interest here owing to the physical foundation it gives to the use of E-factors, defined in Eq. (25). From Eqs. (15), (16), and (24), it appears that QuIRT is identical with the E-factor corresponding to a two-component case ... 

Thus any pressure differential in excess of the 25-atm. osmotic pressure should produce some yield of fresh water. The question then becomes one of rate of production. An analysis made as follows shows that the limiting factor, so far as rate is... 

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