THIS IS THE PROBLEM THIS IS TABLE 2 In the class we mentioned that the Flory-Hug
ID: 581173 • Letter: T
Question
THIS IS THE PROBLEMTHIS IS TABLE 2
In the class we mentioned that the Flory-Huggins interaction parameter (x) could be expressed by knowing the solubility parameters of the pure components (8). For a two-component mixture (AB) reads: where V, is a reference volume (100 cm'/mol), R is the universal gas constant (8.314 J/K/mol), and T is the absolute tem pcrature, and ) is the solubility ofj given by: (K) In Eq. (2) (F is the molar attraction constant for the k-th group in j species, and (V corresponding molar volume constant of the k-th group in j species. is the
Explanation / Answer
Solubility of j is determoned by the molar attraction constant square coming at the numerator.. Hence the more the attraction between the molecules in a particular phase, the more it can be soluble.. Hence the higher values of solubility parameter like acetone, ethylene glycol, NN dimethyl formamide ensures good and efficient solubility.
The positive value of the interaction parsmeter determines solubility which in turn depends on the square of the difference of the solubility parameter.
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