First term on right hand side can be ignored in comparison to second term.
Fig.5.2: Free energy verses distance for a vapor nucleus
where,
Then the change in free energy is,
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(5.5) |
From this expression it can be concluded that the condensation is possible only when the vapors are at a sufficient degree of super saturation. If then condensation is not thermodynamically favorable. This expression can be expressed in more general form,
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