entropy of mixing


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entropy of mixing

[′en·trə·pē əv ′mik·siŋ]
(physical chemistry)
After mixing substances, the difference between the entropy of the mixture and the sum of the entropies of the components of the mixture.
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References in periodicals archive ?
Our non-crystallizable molecular glass mixture binders have very high entropy of mixing value, and high glass transition temperature necessary to transform those OLED materials into useful formulations.
During the process of polymerization due to the transition of monomer molecules to polymer chain, there is a sharp decrease in the combinatorial entropy of mixing of the system.
Where [DELTA]G is the free energy of mixing, [DELTA]H is the enthalpy of mixing, T is the temperature, and AS is the entropy of mixing.
This means the entropy of mixing ([DELTA]S= k ln[ohm]) is reduced and if the enthalpy of mixing is unfavorable, then the free energy of mixing will be insufficient and spontaneous phase separation will occur.
The second term represents the geometric entropy of mixing, assuming the additive to behave as a hard sphere.
During thermoset crosslinking within a thermoplastic, phase separation is usually driven by the decrease in the entropy of mixing, raising the free energy of the system.
Then both the enthalpy and the entropy of mixing are negative, but if [absolute value of [H.